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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.

5331-01-385-1557 (W007001385)

NIIN: 01-385-1557
In stock
NSN: 5331-01-385-1557
FSC Code: 5331
MPN: W007001385

5331-01-385-1544 (W007031000)

NIIN: 01-385-1544
In stock
NSN: 5331-01-385-1544
FSC Code: 5331
MPN: W007031000

5331-01-388-8548 (W007054300)

NIIN: 01-388-8548
In stock
NSN: 5331-01-388-8548
FSC Code: 5331
MPN: W007054300

5331-01-389-6093 (W007001405)

NIIN: 01-389-6093
In stock
NSN: 5331-01-389-6093
FSC Code: 5331
MPN: W007001405

5331-01-389-6092 (W007001418)

NIIN: 01-389-6092
In stock
NSN: 5331-01-389-6092
FSC Code: 5331
MPN: W007001418

5331-01-385-3845 (W007040006)

NIIN: 01-385-3845
In stock
NSN: 5331-01-385-3845
FSC Code: 5331
MPN: W007040006

5331-01-385-3848 (W007001384)

NIIN: 01-385-3848
In stock
NSN: 5331-01-385-3848
FSC Code: 5331
MPN: W007001384

5331-01-385-4378 (W007001259)

NIIN: 01-385-4378
In stock
NSN: 5331-01-385-4378
FSC Code: 5331
MPN: W007001259

5331-01-389-6083 (W007001205)

NIIN: 01-389-6083
In stock
NSN: 5331-01-389-6083
FSC Code: 5331
MPN: W007001205

5331-01-385-4379 (W007001022)

NIIN: 01-385-4379
In stock
NSN: 5331-01-385-4379
FSC Code: 5331
MPN: W007001022

5331-01-388-9020 (W007000575)

NIIN: 01-388-9020
In stock
NSN: 5331-01-388-9020
FSC Code: 5331
MPN: W007000575

5331-01-385-3727 (W007000434)

NIIN: 01-385-3727
In stock
NSN: 5331-01-385-3727
FSC Code: 5331
MPN: W007000434

5331-17-109-9029 (W007000258)

NIIN: 17-109-9029
In stock
NSN: 5331-17-109-9029
FSC Code: 5331
MPN: W007000258

5331-01-389-4440 (W007000334)

NIIN: 01-389-4440
In stock
NSN: 5331-01-389-4440
FSC Code: 5331
MPN: W007000334

5331-01-393-6493 (W007000647)

NIIN: 01-393-6493
In stock
NSN: 5331-01-393-6493
FSC Code: 5331
MPN: W007000647

5331-01-388-8854 (W007001004)

NIIN: 01-388-8854
In stock
NSN: 5331-01-388-8854
FSC Code: 5331
MPN: W007001004

5331-01-552-8095 (W006001-019)

NIIN: 01-552-8095
In stock
NSN: 5331-01-552-8095
FSC Code: 5331
MPN: W006001019

5331-01-443-8523 (W000300847)

NIIN: 01-443-8523
In stock
NSN: 5331-01-443-8523
FSC Code: 5331
MPN: W000300847

5331-01-443-8526 (W000300847)

NIIN: 01-443-8526
In stock
NSN: 5331-01-443-8526
FSC Code: 5331
MPN: W000300847

5331-01-421-6285 (W000282013001)

NIIN: 01-421-6285
In stock
NSN: 5331-01-421-6285
FSC Code: 5331
MPN: W000282013001

5331-01-453-0017 (W000300847)

NIIN: 01-453-0017
In stock
NSN: 5331-01-453-0017
FSC Code: 5331
MPN: W000300847

5331-01-443-8529 (W000002567)

NIIN: 01-443-8529
In stock
NSN: 5331-01-443-8529
FSC Code: 5331
MPN: W000002567

5331-99-133-8326 (VZ-49-0079-011)

NIIN: 99-133-8326
In stock
NSN: 5331-99-133-8326
FSC Code: 5331
MPN: VZ490079011

5331-01-570-3638 (VZ-49-0062-611)

NIIN: 01-570-3638
In stock
NSN: 5331-01-570-3638
FSC Code: 5331
MPN: VZ490062611

5331-01-570-5306 (VZ-49-0062-711)

NIIN: 01-570-5306
In stock
NSN: 5331-01-570-5306
FSC Code: 5331
MPN: VZ490062711

5331-99-219-6963 (VZ-49-0082-011)

NIIN: 99-219-6963
In stock
NSN: 5331-99-219-6963
FSC Code: 5331
MPN: VZ490082011

5331-01-570-3639 (VZ-49-0062-811)

NIIN: 01-570-3639
In stock
NSN: 5331-01-570-3639
FSC Code: 5331
MPN: VZ490062811

5331-01-570-5323 (VZ-49-0062-511)

NIIN: 01-570-5323
In stock
NSN: 5331-01-570-5323
FSC Code: 5331
MPN: VZ490062511

5331-01-570-5311 (VZ-49-0062-211)

NIIN: 01-570-5311
In stock
NSN: 5331-01-570-5311
FSC Code: 5331
MPN: VZ490062211

5331-01-570-3640 (VZ-49-0062-311)

NIIN: 01-570-3640
In stock
NSN: 5331-01-570-3640
FSC Code: 5331
MPN: VZ490062311

5331-01-570-5302 (VZ-49-0062-111)

NIIN: 01-570-5302
In stock
NSN: 5331-01-570-5302
FSC Code: 5331
MPN: VZ490062111

5331-01-570-3642 (VZ-49-0062-411)

NIIN: 01-570-3642
In stock
NSN: 5331-01-570-3642
FSC Code: 5331
MPN: VZ490062411

5331-01-570-5316 (VZ-49-0062-011)

NIIN: 01-570-5316
In stock
NSN: 5331-01-570-5316
FSC Code: 5331
MPN: VZ490062011

5331-99-215-8823 (VZ-49-0043-011)

NIIN: 99-215-8823
In stock
NSN: 5331-99-215-8823
FSC Code: 5331
MPN: VZ490043011

5331-01-432-1221 (VJ-4RV)

NIIN: 01-432-1221
In stock
NSN: 5331-01-432-1221
FSC Code: 5331
MPN: VJ4RV

5331-01-569-8865 (VFC8037A1)

NIIN: 01-569-8865
In stock
NSN: 5331-01-569-8865
FSC Code: 5331
MPN: VFC8037A1

5331-01-446-0048 (VF-036)

NIIN: 01-446-0048
In stock
NSN: 5331-01-446-0048
FSC Code: 5331
MPN: VF036

5331-01-382-0999 (VA70-9-017)

NIIN: 01-382-0999
In stock
NSN: 5331-01-382-0999
FSC Code: 5331
MPN: VA709017

5331-01-391-0264 (VA70-9DASH)

NIIN: 01-391-0264
In stock
NSN: 5331-01-391-0264
FSC Code: 5331
MPN: VA709DASH

5331-99-213-0224 (VA-49-0061-824)

NIIN: 99-213-0224
In stock
NSN: 5331-99-213-0224
FSC Code: 5331
MPN: VA490061824

5331-99-253-1092 (VA-49-0061-230)

NIIN: 99-253-1092
In stock
NSN: 5331-99-253-1092
FSC Code: 5331
MPN: VA490061230

5331-01-527-7386 (VA70-9-042)

NIIN: 01-527-7386
In stock
NSN: 5331-01-527-7386
FSC Code: 5331
MPN: VA709042

5331-01-364-4804 (VA-49-0051-045)

NIIN: 01-364-4804
In stock
NSN: 5331-01-364-4804
FSC Code: 5331
MPN: VA490051045

5331-01-364-4805 (VA-49-0051-027)

NIIN: 01-364-4805
In stock
NSN: 5331-01-364-4805
FSC Code: 5331
MPN: VA490051027

5331-99-133-8325 (VA-49-0061-212)

NIIN: 99-133-8325
In stock
NSN: 5331-99-133-8325
FSC Code: 5331
MPN: VA490061212

5331-01-347-3722 (V93905)

NIIN: 01-347-3722
In stock
NSN: 5331-01-347-3722
FSC Code: 5331
MPN: V93905

5331-01-433-6397 (V92224)

NIIN: 01-433-6397
In stock
NSN: 5331-01-433-6397
FSC Code: 5331
MPN: V92224

5331-01-468-8609 (V72135)

NIIN: 01-468-8609
In stock
NSN: 5331-01-468-8609
FSC Code: 5331
MPN: V72135