BOSS_O Ring_Sizing 644 009 Valve O Ring Size Chart
User Manual: 644-009
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BOSS Hydraulic Valve O-Ring Sizing Chart
2012 BOSS PRODUCTS/NORTHERN STAR INDUSTRIES, INC. ALL RIGHTS RESERVED. | WWW.BOSSPLOW.COM
INCHES
METRIC
2 Way 4 Way
Top Seal
Position 1
Position 2
Position 3
Boss Valve# Type Std. O-Ring
Sizes
I.D.
(Inches)
Width
(Inches) Type Std. O-Ring
Sizes
I.D.
(Inches)
Width
(Inches) Type Std. O-Ring
Sizes
I.D.
(Inches)
Width
(Inches) Type Std. O-Ring
Sizes
I.D.
(Inches)
Width
(Inches) Type
HYD01637
HYD07047
HYD07048
HYD01639
HYD01640
HYD07027
STB03096
STB03060
HYD07100
HYD07029
2 Way
2 Way
2 Way
2 Way
2 Way
2 Way
2 Way
4 Way
4 Way
4 Way
908 012
012
012
012
012
012
012
014
014
016
908
908
908
908
908
908
908
908
910
.644 ± .009 .364 ± .005 .070 ± .003
.070 ± .003
.070 ± .003
.070 ± .003
.070 ± .003
.070 ± .003
.070 ± .003
.070 ± .003
.070 ± .003
.070 ± .003
.364 ± .005
.364 ± .005
.364 ± .005
.364 ± .005
.364 ± .005
.364 ± .005
.489 ± .005
.489 ± .005
.614 ± .009
.087 ± .003 Nitrile (Buna-N) Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
013
013
015
.070 ± .003
.070 ± .003
.070 ± .003
.426 ± .005
.426 ± .005
.551 ± .007
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
012
012
014
.070 ± .003
.070 ± .003
.070 ± .003
.364 ± .005
.364 ± .005
.489 ± .005
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
.087 ± .003
.087 ± .003
.087 ± .003
.087 ± .003
.087 ± .003
.087 ± .003
.087 ± .003
.087 ± .003
.097 ± .003
.644 ± .009
.644 ± .009
.644 ± .009
.644 ± .009
.644 ± .009
.644 ± .009
.644 ± .009
.644 ± .009
.755 ± .009
Top Seal Position 1 Position 2 Position 3
Boss Valve# Type Std. O-Ring
Sizes
I.D.
(mm)
Width
(mm) Type Std. O-Ring
Sizes
I.D.
(mm)
Width
(mm) Type Std. O-Ring
Sizes
I.D.
(mm)
Width
(mm) Type Std. O-Ring
Sizes
I.D.
(mm)
Width
(mm) Type
HYD01637
HYD07047
HYD07048
HYD01639
HYD01640
HYD07027
STB03096
STB03060
HYD07100
HYD07029
2 Way
2 Way
2 Way
2 Way
2 Way
2 Way
2 Way
4 Way
4 Way
4 Way
908 012
012
012
012
012
012
012
014
014
016
908
908
908
908
908
908
908
908
910
16.36 ± .23 9.25 ± 0.13 1.78 ± 0.08
1.78 ± 0.08
1.78 ± 0.08
1.78 ± 0.08
1.78 ± 0.08
1.78 ± 0.08
1.78 ± 0.08
1.78 ± 0.08
1.78 ± 0.08
1.78 ± 0.08
9.25 ± 0.13
9.25 ± 0.13
9.25 ± 0.13
9.25 ± 0.13
9.25 ± 0.13
9.25 ± 0.13
12.42 ± 0.13
12.42 ± 0.13
15.60 ± 0.23
2.21 ± .08 Nitrile (Buna-N) Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
013
013
015
1.78 ± 0.08
1.78 ± 0.08
1.78 ± 0.08
10.82 ± 0.13
10.82 ± 0.13
14.00 ± 0.18
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
012
012
014
1.78 ± 0.08
1.78 ± 0.08
1.78 ± 0.08
9.25 ± 0.13
9.25 ± 0.13
12.42 ± 0.13
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
Nitrile (Buna-N)
2.21 ± .08
2.21 ± .08
2.21 ± .08
2.21 ± .08
2.21 ± .08
2.21 ± .08
2.21 ± .08
2.21 ± .08
2.46 ± 0.08
16.36 ± .23
16.36 ± .23
16.36 ± .23
16.36 ± .23
16.36 ± .23
16.36 ± .23
16.36 ± .23
16.36 ± .23
19.18 ± 0.23
Top Seal Position 1 Position 2 Position 3
