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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.

5331-01-476-2823 (J221P052)

NIIN: 01-476-2823
In stock
NSN: 5331-01-476-2823
FSC Code: 5331
MPN: J221P052

5331-01-443-6017 (J221P028)

NIIN: 01-443-6017
In stock
NSN: 5331-01-443-6017
FSC Code: 5331
MPN: J221P028

5331-01-494-5829 (J221P025)

NIIN: 01-494-5829
In stock
NSN: 5331-01-494-5829
FSC Code: 5331
MPN: J221P025

5331-01-362-4439 (J221P1134)

NIIN: 01-362-4439
In stock
NSN: 5331-01-362-4439
FSC Code: 5331
MPN: J221P1134

5331-01-347-3716 (J1741056)

NIIN: 01-347-3716
In stock
NSN: 5331-01-347-3716
FSC Code: 5331
MPN: J1741056

5331-01-348-3316 (J1740853)

NIIN: 01-348-3316
In stock
NSN: 5331-01-348-3316
FSC Code: 5331
MPN: J1740853

5331-01-460-1810 (J-16-1-4)

NIIN: 01-460-1810
In stock
NSN: 5331-01-460-1810
FSC Code: 5331
MPN: J1614

5331-01-481-6640 (J1400P044)

NIIN: 01-481-6640
In stock
NSN: 5331-01-481-6640
FSC Code: 5331
MPN: J1400P044

5331-01-542-4980 (J1403310)

NIIN: 01-542-4980
In stock
NSN: 5331-01-542-4980
FSC Code: 5331
MPN: J1403310

5331-01-412-4052 (S589B265AAA)

NIIN: 01-412-4052
In stock
NSN: 5331-01-412-4052
FSC Code: 5331
MPN: S589B265AAA

5331-01-412-4051 (S589B263AAA)

NIIN: 01-412-4051
In stock
NSN: 5331-01-412-4051
FSC Code: 5331
MPN: S589B263AAA

5331-01-422-0002 (J005535-117)

NIIN: 01-422-0002
In stock
NSN: 5331-01-422-0002
FSC Code: 5331
MPN: J005535117

5331-01-424-0635 (J005526-224)

NIIN: 01-424-0635
In stock
NSN: 5331-01-424-0635
FSC Code: 5331
MPN: J005526224

5331-01-538-5517 (ITI-049-A1-0D)

NIIN: 01-538-5517
In stock
NSN: 5331-01-538-5517
FSC Code: 5331
MPN: ITI049A10D

5331-01-406-5841 (IS35600-3033)

NIIN: 01-406-5841
In stock
NSN: 5331-01-406-5841
FSC Code: 5331
MPN: IS356003033

5331-01-438-1678 (ING60026)

NIIN: 01-438-1678
In stock
NSN: 5331-01-438-1678
FSC Code: 5331
MPN: ING60026

5331-01-438-9959 (ID2041)

NIIN: 01-438-9959
In stock
NSN: 5331-01-438-9959
FSC Code: 5331
MPN: ID2041

5331-01-438-9955 (ID2040)

NIIN: 01-438-9955
In stock
NSN: 5331-01-438-9955
FSC Code: 5331
MPN: ID2040

5331-01-438-9954 (ID1288)

NIIN: 01-438-9954
In stock
NSN: 5331-01-438-9954
FSC Code: 5331
MPN: ID1288

5331-01-412-6714 (HV31-325-011-70)

NIIN: 01-412-6714
In stock
NSN: 5331-01-412-6714
FSC Code: 5331
MPN: HV3132501170

5331-01-466-0709 (HV39-619-11-HT)

NIIN: 01-466-0709
In stock
NSN: 5331-01-466-0709
FSC Code: 5331
MPN: HV3961911HT

5331-01-415-6356 (HV22-525-5-70)

NIIN: 01-415-6356
In stock
NSN: 5331-01-415-6356
FSC Code: 5331
MPN: HV22525570

5331-01-466-7520 (HU09152647)

NIIN: 01-466-7520
In stock
NSN: 5331-01-466-7520
FSC Code: 5331
MPN: HU09152647

5331-20-002-7639 (HUBLIGH-0143-33)

NIIN: 20-002-7639
In stock
NSN: 5331-20-002-7639
FSC Code: 5331
MPN: HUBLIGH014333

5331-01-524-6017 (NAS1611-115A)

NIIN: 01-524-6017
In stock
NSN: 5331-01-524-6017
FSC Code: 5331
MPN: NAS1611115A

5331-99-986-6751 (HSM-0452-30)

NIIN: 99-986-6751
In stock
NSN: 5331-99-986-6751
FSC Code: 5331
MPN: HSM045230

5331-99-891-7593 (HSM-0160-30)

NIIN: 99-891-7593
In stock
NSN: 5331-99-891-7593
FSC Code: 5331
MPN: HSM016030

5331-01-562-4102 (HSHRFS1001-3-47400-503-ORSN)

NIIN: 01-562-4102
In stock
NSN: 5331-01-562-4102
FSC Code: 5331
MPN: HSHRFS1001347400503ORSN

5331-01-561-7787 (HSHRFS1001-3-474000-5030RN)

NIIN: 01-561-7787
In stock
NSN: 5331-01-561-7787
FSC Code: 5331
MPN: HSHRFS100134740005030RN

5331-01-454-0206 (HS-54B)

NIIN: 01-454-0206
In stock
NSN: 5331-01-454-0206
FSC Code: 5331
MPN: HS54B

5331-01-489-5589 (HS232-9-112)

NIIN: 01-489-5589
In stock
NSN: 5331-01-489-5589
FSC Code: 5331
MPN: HS2329112

5331-25-150-2820 (HS1429S1.1)

NIIN: 25-150-2820
In stock
NSN: 5331-25-150-2820
FSC Code: 5331
MPN: HS1429S11

5331-25-150-2688 (HS1423S1.1)

NIIN: 25-150-2688
In stock
NSN: 5331-25-150-2688
FSC Code: 5331
MPN: HS1423S11

5331-25-150-2691 (HS1423S1.1)

NIIN: 25-150-2691
In stock
NSN: 5331-25-150-2691
FSC Code: 5331
MPN: HS1423S11

5331-25-150-2609 (HS1312S54.2)

NIIN: 25-150-2609
In stock
NSN: 5331-25-150-2609
FSC Code: 5331
MPN: HS1312S542

5331-25-150-2438 (HS)

NIIN: 25-150-2438
In stock
NSN: 5331-25-150-2438
FSC Code: 5331
MPN: HS

5331-25-150-2435 (HS)

NIIN: 25-150-2435
In stock
NSN: 5331-25-150-2435
FSC Code: 5331
MPN: HS

5331-25-150-2447 (SIMKO)

NIIN: 25-150-2447
In stock
NSN: 5331-25-150-2447
FSC Code: 5331
MPN: SIMKO

5331-25-150-2448 (HS)

NIIN: 25-150-2448
In stock
NSN: 5331-25-150-2448
FSC Code: 5331
MPN: HS

5331-25-150-2464 (SIMKO)

NIIN: 25-150-2464
In stock
NSN: 5331-25-150-2464
FSC Code: 5331
MPN: SIMKO

5331-25-150-2439 (HS)

NIIN: 25-150-2439
In stock
NSN: 5331-25-150-2439
FSC Code: 5331
MPN: HS

5331-25-150-2467 (RM1845-30)

NIIN: 25-150-2467
In stock
NSN: 5331-25-150-2467
FSC Code: 5331
MPN: RM184530

5331-25-150-2472 (SOR)

NIIN: 25-150-2472
In stock
NSN: 5331-25-150-2472
FSC Code: 5331
MPN: SOR

5331-25-150-2473 (R4425)

NIIN: 25-150-2473
In stock
NSN: 5331-25-150-2473
FSC Code: 5331
MPN: R4425

5331-25-150-2462 (R41000)

NIIN: 25-150-2462
In stock
NSN: 5331-25-150-2462
FSC Code: 5331
MPN: R41000

5331-01-528-2147 (HRG2015-1)

NIIN: 01-528-2147
In stock
NSN: 5331-01-528-2147
FSC Code: 5331
MPN: HRG20151

5331-01-454-0924 (HP-712-770)

NIIN: 01-454-0924
In stock
NSN: 5331-01-454-0924
FSC Code: 5331
MPN: HP712770

5331-01-454-0907 (HP-706-760)

NIIN: 01-454-0907
In stock
NSN: 5331-01-454-0907
FSC Code: 5331
MPN: HP706760