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O-Rings

FSC 5331: O-Rings

Federal Supply Class (FSC) 5331 covers O-rings, the round-section elastomeric seals used to seal static and dynamic joints. The catalog includes O-rings built to AS568, MIL-SPEC, and industry standards.

O-rings seal connections in hydraulic, pneumatic, fuel, and fluid systems by compressing in a groove. They are among the most widely used sealing elements in machinery.

Common materials include nitrile (Buna-N), fluorocarbon (Viton), silicone, EPDM, and PTFE, selected for fluid compatibility and temperature range. Sizes follow standard dash-number series for repeatable replacement.

5331-00-498-5739 (10159866)

NIIN: 00-498-5739
In stock
NSN: 5331-00-498-5739
FSC Code: 5331
MPN: 10159866

5331-00-166-8412 (10159872)

NIIN: 00-166-8412
In stock
NSN: 5331-00-166-8412
FSC Code: 5331
MPN: 10159872

5331-00-005-1500 (10159860)

NIIN: 00-005-1500
In stock
NSN: 5331-00-005-1500
FSC Code: 5331
MPN: 10159860

5331-01-220-2476 (10159868)

NIIN: 01-220-2476
In stock
NSN: 5331-01-220-2476
FSC Code: 5331
MPN: 10159868

5331-00-250-2074 (10159862)

NIIN: 00-250-2074
In stock
NSN: 5331-00-250-2074
FSC Code: 5331
MPN: 10159862

5331-00-759-2011 (10159867)

NIIN: 00-759-2011
In stock
NSN: 5331-00-759-2011
FSC Code: 5331
MPN: 10159867

5331-00-826-3972 (10159858)

NIIN: 00-826-3972
In stock
NSN: 5331-00-826-3972
FSC Code: 5331
MPN: 10159858

5331-01-129-1032 (10159874)

NIIN: 01-129-1032
In stock
NSN: 5331-01-129-1032
FSC Code: 5331
MPN: 10159874

5331-00-498-5737 (10159865)

NIIN: 00-498-5737
In stock
NSN: 5331-00-498-5737
FSC Code: 5331
MPN: 10159865

5331-00-759-6969 (10159864)

NIIN: 00-759-6969
In stock
NSN: 5331-00-759-6969
FSC Code: 5331
MPN: 10159864

5331-01-127-8551 (10159863)

NIIN: 01-127-8551
In stock
NSN: 5331-01-127-8551
FSC Code: 5331
MPN: 10159863

5331-01-128-8218 (10159882)

NIIN: 01-128-8218
In stock
NSN: 5331-01-128-8218
FSC Code: 5331
MPN: 10159882

5331-01-128-8172 (10159877)

NIIN: 01-128-8172
In stock
NSN: 5331-01-128-8172
FSC Code: 5331
MPN: 10159877

5331-01-131-0755 (10159875)

NIIN: 01-131-0755
In stock
NSN: 5331-01-131-0755
FSC Code: 5331
MPN: 10159875

5331-01-128-8219 (10159883)

NIIN: 01-128-8219
In stock
NSN: 5331-01-128-8219
FSC Code: 5331
MPN: 10159883

5331-01-129-7626 (10159879)

NIIN: 01-129-7626
In stock
NSN: 5331-01-129-7626
FSC Code: 5331
MPN: 10159879

5331-01-128-8173 (10159878)

NIIN: 01-128-8173
In stock
NSN: 5331-01-128-8173
FSC Code: 5331
MPN: 10159878

5331-01-128-8200 (10159885)

NIIN: 01-128-8200
In stock
NSN: 5331-01-128-8200
FSC Code: 5331
MPN: 10159885

5331-01-129-1625 (10159876)

NIIN: 01-129-1625
In stock
NSN: 5331-01-129-1625
FSC Code: 5331
MPN: 10159876

5331-01-129-5121 (10159880)

NIIN: 01-129-5121
In stock
NSN: 5331-01-129-5121
FSC Code: 5331
MPN: 10159880

5331-01-211-0457 (10159889)

NIIN: 01-211-0457
In stock
NSN: 5331-01-211-0457
FSC Code: 5331
MPN: 10159889

5331-01-128-8206 (10159891)

NIIN: 01-128-8206
In stock
NSN: 5331-01-128-8206
FSC Code: 5331
MPN: 10159891

5331-00-164-6276 (10159854)

NIIN: 00-164-6276
In stock
NSN: 5331-00-164-6276
FSC Code: 5331
MPN: 10159854

5331-01-128-8202 (10159890)

NIIN: 01-128-8202
In stock
NSN: 5331-01-128-8202
FSC Code: 5331
MPN: 10159890

5331-01-129-1618 (10159887)

NIIN: 01-129-1618
In stock
NSN: 5331-01-129-1618
FSC Code: 5331
MPN: 10159887

5331-01-129-1615 (10159884)

NIIN: 01-129-1615
In stock
NSN: 5331-01-129-1615
FSC Code: 5331
MPN: 10159884

5331-01-128-8181 (10159896)

NIIN: 01-128-8181
In stock
NSN: 5331-01-128-8181
FSC Code: 5331
MPN: 10159896

5331-01-129-1611 (10159893)

NIIN: 01-129-1611
In stock
NSN: 5331-01-129-1611
FSC Code: 5331
MPN: 10159893

5331-01-128-8211 (10159898)

NIIN: 01-128-8211
In stock
NSN: 5331-01-128-8211
FSC Code: 5331
MPN: 10159898

5331-01-128-8212 (10159899)

NIIN: 01-128-8212
In stock
NSN: 5331-01-128-8212
FSC Code: 5331
MPN: 10159899

5331-01-128-8213 (10159901)

NIIN: 01-128-8213
In stock
NSN: 5331-01-128-8213
FSC Code: 5331
MPN: 10159901

5331-01-129-1617 (10159886)

NIIN: 01-129-1617
In stock
NSN: 5331-01-129-1617
FSC Code: 5331
MPN: 10159886

5331-01-131-5039 (10159894)

NIIN: 01-131-5039
In stock
NSN: 5331-01-131-5039
FSC Code: 5331
MPN: 10159894

5331-01-128-8179 (10159895)

NIIN: 01-128-8179
In stock
NSN: 5331-01-128-8179
FSC Code: 5331
MPN: 10159895

5331-01-129-1619 (10159888)

NIIN: 01-129-1619
In stock
NSN: 5331-01-129-1619
FSC Code: 5331
MPN: 10159888

5331-01-128-8209 (10159892)

NIIN: 01-128-8209
In stock
NSN: 5331-01-128-8209
FSC Code: 5331
MPN: 10159892

5331-01-128-8177 (10159881)

NIIN: 01-128-8177
In stock
NSN: 5331-01-128-8177
FSC Code: 5331
MPN: 10159881

5331-01-128-8196 (10159903)

NIIN: 01-128-8196
In stock
NSN: 5331-01-128-8196
FSC Code: 5331
MPN: 10159903

5331-01-129-1627 (10159911)

NIIN: 01-129-1627
In stock
NSN: 5331-01-129-1627
FSC Code: 5331
MPN: 10159911

5331-01-128-8195 (10159902)

NIIN: 01-128-8195
In stock
NSN: 5331-01-128-8195
FSC Code: 5331
MPN: 10159902

5331-01-128-8216 (10159905)

NIIN: 01-128-8216
In stock
NSN: 5331-01-128-8216
FSC Code: 5331
MPN: 10159905

5331-01-128-8184 (10159913)

NIIN: 01-128-8184
In stock
NSN: 5331-01-128-8184
FSC Code: 5331
MPN: 10159913

5331-01-132-6536 (10159914)

NIIN: 01-132-6536
In stock
NSN: 5331-01-132-6536
FSC Code: 5331
MPN: 10159914

5331-01-128-8198 (10159909)

NIIN: 01-128-8198
In stock
NSN: 5331-01-128-8198
FSC Code: 5331
MPN: 10159909

5331-01-242-6309 (10159912)

NIIN: 01-242-6309
In stock
NSN: 5331-01-242-6309
FSC Code: 5331
MPN: 10159912

5331-01-129-1613 (10159900)

NIIN: 01-129-1613
In stock
NSN: 5331-01-129-1613
FSC Code: 5331
MPN: 10159900

5331-01-129-1623 (10159907)

NIIN: 01-129-1623
In stock
NSN: 5331-01-129-1623
FSC Code: 5331
MPN: 10159907

5331-01-140-3095 (10159917)

NIIN: 01-140-3095
In stock
NSN: 5331-01-140-3095
FSC Code: 5331
MPN: 10159917