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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.

5331-01-538-8583 (6273E38-ITEM40)

NIIN: 01-538-8583
In stock
NSN: 5331-01-538-8583
FSC Code: 5331
MPN: 6273E38ITEM40

5331-00-285-6869 (C1364PC59)

NIIN: 00-285-6869
In stock
NSN: 5331-00-285-6869
FSC Code: 5331
MPN: C1364PC59

5331-01-538-8579 (6273E38-ITEM38)

NIIN: 01-538-8579
In stock
NSN: 5331-01-538-8579
FSC Code: 5331
MPN: 6273E38ITEM38

5331-01-537-7216 (AS-568A-142-70EP)

NIIN: 01-537-7216
In stock
NSN: 5331-01-537-7216
FSC Code: 5331
MPN: AS568A14270EP

5331-01-538-8624 (6273E38-ITEM73)

NIIN: 01-538-8624
In stock
NSN: 5331-01-538-8624
FSC Code: 5331
MPN: 6273E38ITEM73

5331-01-538-8582 (6273E38-ITEM39)

NIIN: 01-538-8582
In stock
NSN: 5331-01-538-8582
FSC Code: 5331
MPN: 6273E38ITEM39

5331-01-538-8595 (6273E38-ITEM44)

NIIN: 01-538-8595
In stock
NSN: 5331-01-538-8595
FSC Code: 5331
MPN: 6273E38ITEM44

5331-01-313-7875 (C-13388-2)

NIIN: 01-313-7875
In stock
NSN: 5331-01-313-7875
FSC Code: 5331
MPN: C133882

5331-01-283-1769 (C13374)

NIIN: 01-283-1769
In stock
NSN: 5331-01-283-1769
FSC Code: 5331
MPN: C13374

5331-01-305-0662 (C13373-PC14-1.50IN)

NIIN: 01-305-0662
In stock
NSN: 5331-01-305-0662
FSC Code: 5331
MPN: C13373PC14150IN

5331-01-305-0661 (C13373-PC10-1.50IN)

NIIN: 01-305-0661
In stock
NSN: 5331-01-305-0661
FSC Code: 5331
MPN: C13373PC10150IN

5331-01-294-4328 (C13373)

NIIN: 01-294-4328
In stock
NSN: 5331-01-294-4328
FSC Code: 5331
MPN: C13373

5331-01-013-9655 (C-127-FT)

NIIN: 01-013-9655
In stock
NSN: 5331-01-013-9655
FSC Code: 5331
MPN: C127FT

5331-01-013-9656 (C-127-CM)

NIIN: 01-013-9656
In stock
NSN: 5331-01-013-9656
FSC Code: 5331
MPN: C127CM

5331-00-490-1614 (C-123-AS)

NIIN: 00-490-1614
In stock
NSN: 5331-00-490-1614
FSC Code: 5331
MPN: C123AS

5331-01-294-8666 (C-124-14)

NIIN: 01-294-8666
In stock
NSN: 5331-01-294-8666
FSC Code: 5331
MPN: C12414

5331-00-419-3287 (C11E-112-01)

NIIN: 00-419-3287
In stock
NSN: 5331-00-419-3287
FSC Code: 5331
MPN: C11E11201

5331-00-443-6040 (C1180-6)

NIIN: 00-443-6040
In stock
NSN: 5331-00-443-6040
FSC Code: 5331
MPN: C11806

5331-01-285-4795 (C-1166-BC-TW1)

NIIN: 01-285-4795
In stock
NSN: 5331-01-285-4795
FSC Code: 5331
MPN: C1166BCTW1

5331-01-239-8644 (C-114382)

NIIN: 01-239-8644
In stock
NSN: 5331-01-239-8644
FSC Code: 5331
MPN: C114382

5331-00-801-6136 (C112)

NIIN: 00-801-6136
In stock
NSN: 5331-00-801-6136
FSC Code: 5331
MPN: C112

5331-01-126-3481 (C11102-H-002)

NIIN: 01-126-3481
In stock
NSN: 5331-01-126-3481
FSC Code: 5331
MPN: C11102H002

5331-01-510-3526 (625IDX.034CS)

NIIN: 01-510-3526
In stock
NSN: 5331-01-510-3526
FSC Code: 5331
MPN: 625IDX034CS

5331-01-316-1335 (C1-1)

NIIN: 01-316-1335
In stock
NSN: 5331-01-316-1335
FSC Code: 5331
MPN: C11

5331-01-233-2845 (C1-1)

NIIN: 01-233-2845
In stock
NSN: 5331-01-233-2845
FSC Code: 5331
MPN: C11

5331-01-277-6852 (C1-1)

NIIN: 01-277-6852
In stock
NSN: 5331-01-277-6852
FSC Code: 5331
MPN: C11

5331-01-129-6794 (C10E-015-01)

NIIN: 01-129-6794
In stock
NSN: 5331-01-129-6794
FSC Code: 5331
MPN: C10E01501

5331-01-027-4706 (C10984-0080-0669)

NIIN: 01-027-4706
In stock
NSN: 5331-01-027-4706
FSC Code: 5331
MPN: C1098400800669

5331-01-027-4705 (C10984-0080-0033)

NIIN: 01-027-4705
In stock
NSN: 5331-01-027-4705
FSC Code: 5331
MPN: C1098400800033

5331-01-079-7305 (C10762-0070-0013)

NIIN: 01-079-7305
In stock
NSN: 5331-01-079-7305
FSC Code: 5331
MPN: C1076200700013

5331-00-338-5044 (C1016)

NIIN: 00-338-5044
In stock
NSN: 5331-00-338-5044
FSC Code: 5331
MPN: C1016

5331-01-113-9857 (C10196-0075-0010)

NIIN: 01-113-9857
In stock
NSN: 5331-01-113-9857
FSC Code: 5331
MPN: C1019600750010

5331-01-062-1537 (C10096-0060-0014)

NIIN: 01-062-1537
In stock
NSN: 5331-01-062-1537
FSC Code: 5331
MPN: C1009600600014

5331-01-062-1538 (C10096-0060-0007)

NIIN: 01-062-1538
In stock
NSN: 5331-01-062-1538
FSC Code: 5331
MPN: C1009600600007

5331-01-058-5403 (C10096-0070-0112)

NIIN: 01-058-5403
In stock
NSN: 5331-01-058-5403
FSC Code: 5331
MPN: C1009600700112

5331-01-212-9602 (C10096-0070-0012)

NIIN: 01-212-9602
In stock
NSN: 5331-01-212-9602
FSC Code: 5331
MPN: C1009600700012

5331-01-040-4783 (C10096-0060-0009)

NIIN: 01-040-4783
In stock
NSN: 5331-01-040-4783
FSC Code: 5331
MPN: C1009600600009

5331-01-283-7470 (C100-926290)

NIIN: 01-283-7470
In stock
NSN: 5331-01-283-7470
FSC Code: 5331
MPN: C100926290

5331-01-246-6171 (C100-908290)

NIIN: 01-246-6171
In stock
NSN: 5331-01-246-6171
FSC Code: 5331
MPN: C100908290

5331-01-140-7946 (C1007-503-034)

NIIN: 01-140-7946
In stock
NSN: 5331-01-140-7946
FSC Code: 5331
MPN: C1007503034

5331-01-207-1497 (C1007-505-034)

NIIN: 01-207-1497
In stock
NSN: 5331-01-207-1497
FSC Code: 5331
MPN: C1007505034

5331-01-246-6169 (C100-128290)

NIIN: 01-246-6169
In stock
NSN: 5331-01-246-6169
FSC Code: 5331
MPN: C100128290

5331-01-246-6170 (C100-031290)

NIIN: 01-246-6170
In stock
NSN: 5331-01-246-6170
FSC Code: 5331
MPN: C100031290

5331-01-246-1038 (C100-012290)

NIIN: 01-246-1038
In stock
NSN: 5331-01-246-1038
FSC Code: 5331
MPN: C100012290

5331-01-066-3481 (C0M652-1)

NIIN: 01-066-3481
In stock
NSN: 5331-01-066-3481
FSC Code: 5331
MPN: C0M6521

5331-01-065-5884 (C0M464)

NIIN: 01-065-5884
In stock
NSN: 5331-01-065-5884
FSC Code: 5331
MPN: C0M464

5331-01-065-5883 (C0M204)

NIIN: 01-065-5883
In stock
NSN: 5331-01-065-5883
FSC Code: 5331
MPN: C0M204

5331-01-352-4310 (625492C1)

NIIN: 01-352-4310
In stock
NSN: 5331-01-352-4310
FSC Code: 5331
MPN: 625492C1