297201 Catalog

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A-2

Unilet® Conduit Outlet Bodies:
FM7™, FM8®, Form 35® and Form 85™
For use with Rigid Steel, Rigid Aluminum, IMC, and EMT Conduit.

Applications
Serve as pulling fittings.
Make bends in conduit system.
Provide openings for splicing.
Connect and change direction of
conduit runs.
Allow connections for branch runs.
Permit access to conductors for
maintenance.

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Features: FM7™ Series
❶ FM7 Grayloy™-Iron Unilets: most economical conduit bodies for use where
the special advantages of malleable
iron or aluminum are not required.
❷ FM7 Aluminum Unilets: same
dimensions and design features as
FM7 Grayloy™-lron, plus light weight,
high corrosion resistance.
FM7 Wedge-Lok™ Formtite™ covers
with integral gasket are approved for
use in wet locations.
Unique Wedge-Lok™ clip covers allow
easy removal. No retapping of corroded body screw holes is necessary to
replace cover.
Completely interchangeable with
Crouse-Hinds Form 7™ bodies, gaskets
and covers. Equivalent FM7 and Form
7™ units have identical applications and
installation dimensions.
Flat back design provides greater
cubic content for easier wire pulling
and more room for splicing.
Smooth hub bushings and cover
openings protect conductor insulation.
Smooth hub openings allow easy conduit joining.

❷ FM7 Aluminum
Conduit Body with
Cast Aluminum
Cover. 1” Type C
shown.

❶ FM7 Grayloy™-iron, 1” Type C
shown with cut-away body and
cover to illustrate Wedge-Lok™
Clip Cover detail.

Features: Unilet® conduit
outlet bodies
Roomy interiors: more wiring space.
Smooth, rounded integral bushings in
hubs protect conductor insulation.
Accurately tapped, tapered threads
for tight, rigid joints and excellent
ground continuity.

❸ FM8 Grayloy™-iron Conduit Body
with cast cover. 1” Type C shown.

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❺ Form 85 Aluminum Conduit
Body with Stamped Aluminum
Cover. 2” Type C shown.

❹ Form 35 Malleable.
2” Type LB with rollers shown.

• Pan-head cover screws secure cover

• FM8 Grayloy

•

•
•

clips and provide superior screwdriver
seating and torque. Cover screws and
clips are captive to prevent loss.
Hub size, body style, and compliance data molded into body in large,
easy-to-read form. Also maximum wire
number/size and cubic capacity.

A

Features: FM8® Series
❸ Completely interchangeable with
Crouse-Hinds Form 8™ bodies, gaskets
and covers. Equivalent FM8 and Form
8* units have identical applications and
installation dimensions.
Flat back design provides greater
cubic content for easier wire pulling
and more room for splicing.

™-iron with “FG” Series
cast covers and gaskets are approved
for use in wet locations.
Stainless steel screws on stamped
and cast covers.
Smooth hub bushings and cover
openings protect conductor insulation.
Smooth hub openings allow easy conduit joining.

*Form 7 and Form 8 are products of Crouse-Hinds, a
member company of Cooper Industries.

•

FM7
Effective September, 2005
Copyright 2005
PAGE 2

FM8
800-621-1506
www.appletonelec.com

Unilet® Conduit Outlet Bodies:
FM7™, FM8®, Form 35® and Form 85™

A-3

For use with Rigid Steel, Rigid Aluminum, IMC, and EMT Conduit.

Features: Form 35®
❹ Form 35 malleable iron Unilets: high
tensile strength and ductility. High corrosion-resistance, high impact and
shock resistance.
Exclusive built-in easy-pulling rollers in type C (1-1/4” thru 4”) and type
LB (1-1/4” thru 4”)– eliminate damage
when cable is pulled through hubs.
Sizes with flat-back design ideal
where fitting is mounted flat against
surface.
Complete line of conduit bodies, covers and receptacles.
Blank covers domed for extra wiring
space.

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•

Form 35

Form 85

Standard Materials
Form 35 Unilet conduit outlet bodies:
malleable iron.
Form 85 Unilet conduit outlet bodies:
aluminum– copper-free (max. 4/10 of
1%). 1/2” thru 2”– pressure cast. 2-1/2”
thru 4”– sand cast.
FM7 Unilet conduit bodies: Grayloyiron or copper-free aluminum.
FM8 Unilet conduit bodies: Grayloyiron.
Covers for Form 35 and 85: blank–
malleable iron, steel and aluminum.
Duplex grounding receptacle– phenolic. Lamp receptacle– porcelain. Wiring
device and switch covers– aluminum.
Cover screws: stainless steel.
Covers for FM7: stamped steel,
stamped aluminum, cast Grayloy-iron,
and cast aluminum; cover screws:
stainless steel.
Covers for FM8: cast Grayloy-iron,
stamped steel; cover screws: stainless
steel.
Gaskets for Form 35 and Form 85:
neoprene or composition fiber.
Gaskets for FM7 and FM8: neoprene.

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Effective September, 2005
Copyright 2005

•

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Product Cross Reference
For explosionproof conduit outlet
bodies and boxes, see Cat. Section J.
For Mogul Unilets®, see pages A-17
through A-24.

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•

Standard Finishes
Form 35 malleable iron bodies: triplecoat– (1) zinc electroplate, (2) dichromate, and (3) epoxy powder coat.
Form 35 Covers: steel: zinc electroplate. Malleable iron: triple-coat– (1)
zinc electroplate, (2) dichromate, and
(3) epoxy powder coat.
Form 85 aluminum bodies: epoxy
powder coat.
Form 85 stamped aluminum covers:
natural finish.
Form 85 cast aluminum covers:
epoxy powder coat.
FM7 and FM8 Grayloy-iron bodies:
triplecoat– (1) zinc electroplate, (2) dichromate, and (3) epoxy powder coat.

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A

Features: Form 85™
❺ Form 85 aluminum Unilets: copperfree aluminum (max. 4/10 of 1% copper
content). Lightweight, high corrosion resistance. Self-oxidizing, self-renewing.
Lightweight aluminum facilitates
shipping, handling and installing.
Sizes with flat-back design ideal where
fitting is mounted flat against surface.
Complete line of conduit bodies, covers and receptacles.
Blank covers domed for extra wiring
space.

triplecoat– (1) zinc electroplate, (2) dichromate, and (3) epoxy powder coat.
FM7 cast aluminum covers: epoxy
powder coat.

Compliances
UL Standard 514A.
Federal Spec. W-C-586B.
Suitable for classified location use in
Class I, Division 2 areas, if installed in
compliance with NEC 501-4(b).
Appleton malleable iron products
conform to ASTM A47-77, Grade
32510, which has the following properties: tensile strength, 50,000 psi; yield,
32,000 psi; and elongation, 10%.
Appleton aluminum products are produced from a high strength copper-free
(4/10 of 1% max.) alloy.
Appleton Grayloy-iron products are
a gray iron alloy with tensile strength
similar to ASTM-A48 Class 30A
(30,000 psi tensile), and with a Brinell
hardness of approximately 180BH.

•

Form 35

• FM7 aluminum bodies: epoxy powder
coat.
• FM7 and FM8 steel covers: zinc
electroplate.
• FM7 stamped aluminum covers:
natural finish.
• FM7 and FM8 Grayloy-iron covers:

800-621-1506
www.appletonelec.com
PAGE 3

A-4

FM7™ Grayloy™-Iron and Aluminum Unilet®
Conduit Bodies: Wedge-Lok™ Clip Covers;
FM8® Grayloy™-Iron Conduit Bodies and Covers
For use with Rigid Steel, Rigid Aluminum and IMC Conduit.

Freedom of Choice. With new FM8 series added to
Appleton’s full-line family of conduit bodies, you have a
single source for the right choice needed for every job– FM8
Grayloy-iron bodies and covers, FM7 Grayloy-iron or aluminum threaded bodies and covers... malleable iron Form 35...
aluminum Form 85... and malleable iron or aluminum NEC
Mogul 6x8x.
Interchangeable. Appleton FM7 and FM8 bodies, covers
and gaskets are completely interchangeable with equivalent Crouse-Hinds Form 7* and Form 8* bodies and covers.
Applications and installation dimensions are also interchangeable.
No wire damage. Appleton FM7 and FM8 bodies have a
smooth, rounded, internal bushing in each hub and smooth
cover openings to protect conductor insulation.
Easy cover removal. Unique FM7 Wedge-Lok Clip-Cover
design allows easy removal at any later time, without damaging the conduit body. Because the cover is secured with
clips– not screws – no retapping of corroded body screw
holes is necessary to replace cover.
Positive-seating cover screws. Pan-head stainless steel
cover screws, which hold the clips, provide superior screwdriver seating and torque for easier cover installation or
removal. Each cover screw and its attached locking clip are
held captive in the cover to prevent loss.
Full-line choice. Appleton FM7 and FM8 bodies are offered
in a complete range of hub configurations and sizes. FM7
covers are available in blank stamped steel or stamped
aluminum, and also in cast Grayloy-iron or cast aluminum.
FM8 covers are available in Grayloy-iron. Covers can be
NEW
Formtite™ FM7
Covers with
Integral Gaskets

A

• One-piece cover and gasket
assembly
• Neoprene gasket is bonded to
Iron, Steel or Aluminum cover
• Ease of installation
• Productivity gain
• Eliminates “stock outs” of one item
or the other
• No need to order, store, handle, or
install seperate covers and gaskets
because there are fewer SKU’s to
order and inventory

used without gaskets, or with a solid neoprene gasket. All
Appleton FM7 and FM8 bodies, covers and gaskets are
interchangeable with Crouse-Hinds Form 7* and Form 8*
bodies, covers and gaskets.
Approved for wet locations. FM7 and FM8 Grayloy-iron
bodies with the “FG” series cast covers and gasket are
approved for use in wet locations. (NEMA 3R)
Maximum corrosion protection. Appleton FM7 and FM8
Grayloy-iron conduit bodies and cast covers have a triplecoat finish– (1) zinc electroplate, (2) dichromate, and (3)
epoxy powder coating. FM7 aluminum bodies and cast covers are coated with epoxy powder coating. FM7 and FM8
blank steel covers have a zinc electroplate finish. Superior
FM7 and FM8 finish gives greater corrosion protection in wet
or harsh environments, assuring long, trouble-free service.
Grayloy-iron properties. Grayloy™ is an Appleton proprietary cast graphite flake gray iron alloy with superior physical
and mechanical properties offering strength, hardness, fracture toughness, high vibration absorption and dimensional
stability. Tensile strength is similar to ASTM-A48 Class 30A
(30,000 tensile), with Brinell hardness of approximately
180BH.
Aluminum properties. Aluminum products are produced
from a high strength copper-free (4/10 of 1% max.) alloy.
More wiring space. Appleton’s FM7 and FM8 flat-back
design provides greater cubic content for easier wire pulling,
and more room for splicing. FM7 and FM8 flat back fits flush
and snug against flat surfaces for more stable installation.
* Form 7 and Form 8 are products of Crouse-Hinds, a member company of
Cooper Industries.

Appleton
FM7™

Crouse-Hinds
Form 7

Neoprene Integral
Gasket pre-assembled
to Conduit Body Cover
Appleton FM7 (C57, 1-1/2”)
28 Cubic Inches Capacity
Flat-Back Design

Crouse-Hinds Form 7 (C57, 1-1/2”)
26 Cubic Inches Capacity

Appleton FM7:
• Maximum wire number/size and cubic capacity molded into body.
• Large size, style and compliance data molded into body.
Illustrated views are cut away to demonstrate back configurations.

Effective September, 2005
Copyright 2005
PAGE 4

800-621-1506
www.appletonelec.com

A-5

FM7™ Grayloy™-Iron and Aluminum
Unilet® Conduit Bodies with
Wedge-Lok™ Clip Covers and Gaskets
For use with Rigid Steel, Rigid Aluminum and IMC Conduit.

These Appleton FM7 conduit bodies, covers and gaskets have the same applications and installation dimensions as Crouse-Hinds Form 7
conduit bodies. Equivalent FM7 and Form 7 items are completely interchangeable.

Appleton FM7 Conduit Bodies

NOTE: Refer to page A-15 for Wiring Capacity Tables

C

Hub
Size (in.) Grayloy-Iron

LB

LL

Aluminum

Grayloy-Iron

Aluminum

LR

Grayloy-Iron Aluminum

T

Grayloy-Iron

Aluminum

Grayloy-Iron

Aluminum

1/2
3/4
1

C17
C27
C37

C17-SA
C27-SA
C37-SA

LB17
LB27
LB37

LB17-SA
LB27-SA
LB37-SA

LL17
LL27
LL37

LL17-SA
LL27-SA
LL37-SA

LR17
LR27
LR37

LR17-SA
LR27-SA
LR37-SA

T17
T27
T37

T17-SA
T27-SA
T37-SA

1-1/4
1-1/2
2

C47
C57
C67

C47-SA
C57-SA
C67-SA

LB47
LB57
LB67

LB47-SA
LB57-SA
LB67-SA

LL47
LL57
LL67

LL47-SA
LL57-SA
LL67SA

LR47
LR57
LR67

LR47-SA
LR57-SA
LR67-SA

T47
T57
T67

T47-SA
T57-SA
T67-SA

2-1/2
3
3-1/2
4

C77
C87
—
—

C77-SA
C87-SA
—
—

LB77
LB87
LB97
LB107

LB77-SA
LB87-SA
LB97-SA
LB107-SA

LL77
LL87
LL97
LL107

LL77-SA
LL87-SA
LL97-SA
LL107-SA

LR77
LR87
LR97
LR107

LR77-SA
LR87-SA
LR97-SA
LR107-SA

T77
T87
T97
T107

T77-SA
T87-SA
T97-SA
T107-SA

E

Hub
Size (in.) Grayloy-Iron
1/2
3/4
1
1-1/4
1-1/2
2

L*

TA

Aluminum

Grayloy-Iron

Aluminum

E17
E27
E37

E17-SA
E27-SA
E37-SA

L17
L27
L37

—
—
—

TA17
TA27
TA37

—
—
—

—
—
—

L47
L57
L67

—
—
—

TA47
TA57
TA67

TB

Grayloy-Iron Aluminum

X

Grayloy-Iron

Aluminum

Grayloy-Iron

Aluminum

—
—
—

TB17
TB27
TB37

TB17-SA
TB27-SA
TB37-SA

X17
X27
X37

X17-SA
X27-SA
X37-SA

—
—
—

TB47
TB57
TB67

TB47-SA
TB57-SA
TB67-SA

X47
X57
X67

X47-SA
X57-SA
X67-SA

* L Unilets have double opening and are furnished with one steel cover, assembled.

Appleton FM7 Blank Covers and Gaskets
Wedge-Lok
Cast Cover

FM7
Body
Size (in.) Grayloy-Iron

(Covers furnished with Stainless Steel Screws)

Formtite Cast Cover
with Integral Gasket

Wedge-Lok
Stamped Cover

Formtite Stamped Cover
with Integral Gasket

Aluminum

Grayloy-Iron

Aluminum

Steel

Aluminum

Steel

Aluminum

Solid
Neoprene Gasket

170F
270F
370F

170F-SA
270F-SA
370F-SA

170FG
270FG
370FG

170FG-SA
270FG-SA
370FG-SA

170
270
370

170-SA
270-SA
370-SA

170G
270G
370G

170G-SA
270G-SA
370G-SA

GASK571
GASK572
GASK573

1-1/4
1-1/2
2

470F
570F
670F

470F-SA
570F-SA
670F-SA

470FG
570FG
670FG

470FG-SA
570FG-SA
670FG-SA

470
570
670

470-SA
570-SA
670-SA

470G
570G
670G

470G-SA
570G-SA
670G-SA

GASK574
GASK575
GASK576

2-1/2
3
3-1/2
4

870F
870F
970F
970F

870F-SA
870F-SA
970F-SA
970F-SA

870FG
870FG
970FG
970FG

870FG-SA
870FG-SA
970FG-SA
970FG-SA

870
870
970
970

870-SA
870-SA
970-SA
970-SA

870G
870G
970G
970G

870G-SA
870G-SA
970G-SA
970G-SA

GASK578
GASK578
GASK579
GASK579

Effective September, 2005
Copyright 2005

A

1/2
3/4
1

800-621-1506
www.appletonelec.com
PAGE 5

A-6

FM7™ Conduit Body Dimensions

Type C

Types E, L, LB, LL, LR

Types T, TA, TB, X

Dimensions in Inches
Hub
Size

A

B

C

D

E

F

G

H

J

K

L

M

N

P

Q

R

S

T

1/2
3/4
1
1-1/4
1-1/2
2
2-1/2
3
3-1/2
4

3.63
4.25
5.00
5.50
6.00
7.00
9.00
9.00
11.00
11.00

1.38
1.56
1.75
2.19
2.44
3.00
4.25
4.25
5.25
5.25

1.38
1.63
1.88
2.31
2.56
3.13
3.63
4.38
4.88
5.38

5.38
6.00
7.00
7.44
8.19
9.19
12.00
12.00
—
—

3.31
3.50
3.88
4.13
4.63
5.19
—
—
—
—

2.25
2.44
2.75
3.19
3.50
4.06
5.75
5.75
6.94
6.94

2.25
2.50
2.88
3.31
3.69
4.25
5.13
5.88
6.56
7.06

3.94
4.44
5.19
5.44
5.94
6.63
8.75
8.38
10.25
10.00

4.56
5.19
6.00
6.50
7.13
8.13
10.50
10.50
12.69
12.69

1.75
2.00
2.25
2.31
2.56
3.13
3.63
4.38
4.88
5.38

0.63
0.75
0.88
1.13
1.25
1.50
1.75
2.13
2.38
2.63

1.25
1.50
1.75
2.19
2.44
3.00
3.50
4.25
4.75
5.25

3.19
3.81
4.50
5.00
5.44
6.38
8.38
8.38
10.25
10.25

0.94
1.13
1.38
1.75
1.94
2.44
3.56
3.56
4.50
4.50

5.63
6.25
7.25
7.44
8.19
9.19
12.00
12.06
14.31
14.31

2.63
2.88
3.25
3.31
3.63
4.19
—
—
—
—

1.56
1.88
2.00
2.19
2.44
3.00
4.25
4.25
5.25
5.25

2.44
2.63
3.00
3.19
3.56
4.13
5.75
5.75
6.94
6.94

Fraction/Decimal Equivalents (Inches)
Fraction

Decimal

Fraction

Decimal

Fraction

Decimal

Fraction

Decimal

1/16
1/8
3/16
1/4

0.06
0.13
0.19
0.25

5/16
3/8
7/16
1/2

0.31
0.38
0.44
0.50

9/16
5/8
11/16
3/4

0.56
0.63
0.69
0.75

13/16
7/8
15/16
1

0.81
0.88
0.94
1.00

Appleton’s family of conduit bodies gives you
FREEDOM OF CHOICE.

A

FM7™ Grayloy-Iron and
Aluminum. Threaded,
available with a complete
selection of stamped or
cast covers, plus solid
gasket.

Effective September, 2005
Copyright 2005
PAGE 6

Form 35® malleable iron.
Threaded and no-thread
types, with a complete
selection of covers, gaskets,
and wiring devices.

Form 85™ aluminum.
Threaded and setscrew
types, with a complete
selection of covers, gaskets,
and wiring devices.

NEC Mogul 6x8x, plus LBDN
pulling Unilets, aluminum or
malleable.
Furnished with cover and gasket,
meet NEC length and bending
space requirements for large and
heavy conductors.
Mogul LL, LR and T types.
Aluminum or malleable iron. With
cover and gasket.
800-621-1506
www.appletonelec.com

A-15

Wiring Capacity:
FM7™ and FM8® Conduit Bodies and Covers
Combine Body and Cover Capacities for Total usable Capacity
per NEC 370-6(a)(1)
FM7™ Grayloy™-Iron Bodies and Covers: Threaded
Capacity in Cubic Inches
Hub
Size (In.)

C

E

LB

LL
LR

L

T

TA

TB

X

Stamped
Cover

Cast
Cover

4.0
7.0

4.0
7.0

4.0
7.0

4.0
7.0

5.0
9.0

6.0
10.0

6.0
10.0

6.0
10.0

6.0
10.0

0.3
0.5

0.4
0.8

1
1-1/4
1-1/2

11.0
20.0
28.0

11.0
—
—

11.0
20.0
28.0

11.0
20.0
28.0

13.5
22.5
31.0

15.5
20.0
28.0

15.5
20.0
28.0

15.5
20.0
28.0

15.5
20.0
28.0

1.3
1.8
2.3

1.3
2.0
3.0

2
2-1/2

50.0
102.0

—
—

50.0
102.0

50.0
102.0

55.0
—

50.0
102.0

50.0
—

50.0
—

50.0
—

2.8
9.8

4.8
9.7

3
3-1/2

133.0
—

—
—

133.0
218.0

133.0
218.0

—
—

133.0
218.0

—
—

—
—

—
—

9.8
16.5

9.7
16.0

—

—

244.0

244.0

—

244.0

—

—

—

16.5

16.0

LB
4.0
7.0

LL
LR
4.0
7.0

L
—
—

T
6.0
10.0

TA
—
—

TB
6.0
10.0

X
6.0
10.0

Stamped
Cover
0.3
0.5

Cast
Cover
0.4
0.8

1/2
3/4

4

FM7™ Aluminum Bodies and Covers: Threaded
Capacity in Cubic Inches
Hub
Size (In.)
C
E
1/2
4.0
4.0
3/4
7.0
7.0
1
1-1/4
1-1/2

11.0
20.0
28.0

11.0
—
—

11.0
20.0
28.0

11.0
20.0
28.0

—
—
—

15.5
20.0
28.0

—
—
—

15.5
20.0
28.0

15.5
20.0
28.0

1.3
1.8
2.3

1.3
2.0
3.0

2
2-1/2

50.0
102.0

—
—

50.0
102.0

50.0
102.0

—
—

50.0
102.0

—
—

50.0
—

50.0
—

2.8
9.8

4.8
9.7

3
3-1/2

133.0
—

—
—

133.0
218.0

133.0
218.0

—
—

133.0
218.0

—
—

—
—

—
—

9.8
16.5

9.7
16.0

—

—

244.0

244.0

—

244.0

—

—

—

16.5

16.0

T

TA

TB

X

Stamped
Cover

Cast
Cover

4

FM8® Grayloy™-Iron Bodies and Covers: Threaded
Capacity in Cubic Inches
Hub
Size (In.)

E

LB

LL
LR

L

1/2

5.0

—

5.0

5.0

—

6.0

—

6.0

6.0

0.5

0.3

3/4

8.0

—

8.0

8.0

—

10.0

—

10.0

10.0

0.8

0.8

1

13.0

—

13.0

13.0

—

15.0

—

15.0

15.0

1.0

1.0

1-1/4

24.0

—

24.0

24.0

—

25.0

—

25.0

25.0

1.5

1.5

1-1/2

42.5

—

42.5

42.5

—

44.0

—

44.0

44.0

1.8

7.5

2

105.0

—

105.0

105.0

—

105.0

—

105.0

105.0

4.5

12.5

2-1/2

200.0

—

200.0

200.0

—

200.0

—

—

—

12.3

34.5

3

217.0

—

217.0

217.0

—

217.0

—

—

—

12.3

34.5

3-1/2

—

—

380.0

—

—

—

—

—

—

24.0

65.3

4

—

—

400.0

—

—

—

—

—

—

24.0

65.3

Effective September, 2005
Copyright 2005

800-621-1506
www.appletonelec.com
PAGE 15

A

C



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