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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.

5331-01-735-4896 (599-2179-001)

NIIN: 01-735-4896
In stock
NSN: 5331-01-735-4896
FSC Code: 5331
MPN: 5992179001

5331-01-734-0782 (FRS40202A115)

NIIN: 01-734-0782
In stock
NSN: 5331-01-734-0782
FSC Code: 5331
MPN: FRS40202A115

5331-01-733-7589 (077671)

NIIN: 01-733-7589
In stock
NSN: 5331-01-733-7589
FSC Code: 5331
MPN: 077671

5331-01-734-0291 (MRS59)

NIIN: 01-734-0291
In stock
NSN: 5331-01-734-0291
FSC Code: 5331
MPN: MRS59

5331-01-733-9840 (R00110-028-70FSE)

NIIN: 01-733-9840
In stock
NSN: 5331-01-733-9840
FSC Code: 5331
MPN: R0011002870FSE

5331-01-735-1501 (A2916PL)

NIIN: 01-735-1501
In stock
NSN: 5331-01-735-1501
FSC Code: 5331
MPN: A2916PL

5331-01-734-6347 (61443-88-6)

NIIN: 01-734-6347
In stock
NSN: 5331-01-734-6347
FSC Code: 5331
MPN: 61443886

5331-01-734-2994 (2-033)

NIIN: 01-734-2994
In stock
NSN: 5331-01-734-2994
FSC Code: 5331
MPN: 2033

5331-01-733-8327 (FRS40101A030)

NIIN: 01-733-8327
In stock
NSN: 5331-01-733-8327
FSC Code: 5331
MPN: FRS40101A030

5331-01-735-0194 (9464K112)

NIIN: 01-735-0194
In stock
NSN: 5331-01-735-0194
FSC Code: 5331
MPN: 9464K112

5331-01-734-3611 (111-0010-4006)

NIIN: 01-734-3611
In stock
NSN: 5331-01-734-3611
FSC Code: 5331
MPN: 11100104006

5331-01-734-3231 (515-8837031-F121)

NIIN: 01-734-3231
In stock
NSN: 5331-01-734-3231
FSC Code: 5331
MPN: 5158837031F121

5331-01-734-2896 (FRS630344)

NIIN: 01-734-2896
In stock
NSN: 5331-01-734-2896
FSC Code: 5331
MPN: FRS630344

5331-01-734-1875 (FRS430038)

NIIN: 01-734-1875
In stock
NSN: 5331-01-734-1875
FSC Code: 5331
MPN: FRS430038

5331-01-735-1456 (A2916DA)

NIIN: 01-735-1456
In stock
NSN: 5331-01-735-1456
FSC Code: 5331
MPN: A2916DA

5331-01-734-3238 (515-8842441-F110)

NIIN: 01-734-3238
In stock
NSN: 5331-01-734-3238
FSC Code: 5331
MPN: 5158842441F110

5331-01-733-6003 (001-020119R00)

NIIN: 01-733-6003
In stock
NSN: 5331-01-733-6003
FSC Code: 5331
MPN: 001020119R00

5331-01-733-5309 (AL4026695)

NIIN: 01-733-5309
In stock
NSN: 5331-01-733-5309
FSC Code: 5331
MPN: AL4026695

5331-01-733-5266 (AL4026706)

NIIN: 01-733-5266
In stock
NSN: 5331-01-733-5266
FSC Code: 5331
MPN: AL4026706

5331-01-733-4997 (H-83773)

NIIN: 01-733-4997
In stock
NSN: 5331-01-733-4997
FSC Code: 5331
MPN: H83773

5331-01-733-4797 (6550894)

NIIN: 01-733-4797
In stock
NSN: 5331-01-733-4797
FSC Code: 5331
MPN: 6550894

5331-01-734-3237 (515-8843163-F120)

NIIN: 01-734-3237
In stock
NSN: 5331-01-734-3237
FSC Code: 5331
MPN: 5158843163F120

5331-01-734-3071 (FRS630340)

NIIN: 01-734-3071
In stock
NSN: 5331-01-734-3071
FSC Code: 5331
MPN: FRS630340

5331-01-733-9831 (29081-01 PART 9)

NIIN: 01-733-9831
In stock
NSN: 5331-01-733-9831
FSC Code: 5331
MPN: 2908101PART9

5331-01-733-9654 (R03747X533A20A7)

NIIN: 01-733-9654
In stock
NSN: 5331-01-733-9654
FSC Code: 5331
MPN: R03747X533A20A7

5331-01-733-9009 (10-100-6)

NIIN: 01-733-9009
In stock
NSN: 5331-01-733-9009
FSC Code: 5331
MPN: 101006

5331-01-733-6165 (NAS1611-150A)

NIIN: 01-733-6165
In stock
NSN: 5331-01-733-6165
FSC Code: 5331
MPN: NAS1611150A

5331-01-733-5275 (AL4026687)

NIIN: 01-733-5275
In stock
NSN: 5331-01-733-5275
FSC Code: 5331
MPN: AL4026687

5331-01-733-1722 (8635042-27)

NIIN: 01-733-1722
In stock
NSN: 5331-01-733-1722
FSC Code: 5331
MPN: 863504227

5331-01-734-3489 (JE1397-29)

NIIN: 01-734-3489
In stock
NSN: 5331-01-734-3489
FSC Code: 5331
MPN: JE139729

5331-01-734-2866 (FRS40117A029)

NIIN: 01-734-2866
In stock
NSN: 5331-01-734-2866
FSC Code: 5331
MPN: FRS40117A029

5331-01-733-9961 (4903482)

NIIN: 01-733-9961
In stock
NSN: 5331-01-733-9961
FSC Code: 5331
MPN: 4903482

5331-01-733-4389 (SAL-8046-SPR)

NIIN: 01-733-4389
In stock
NSN: 5331-01-733-4389
FSC Code: 5331
MPN: SAL8046SPR

5331-01-733-2599 (2-242)

NIIN: 01-733-2599
In stock
NSN: 5331-01-733-2599
FSC Code: 5331
MPN: 2242

5331-01-733-1727 (8635042-26)

NIIN: 01-733-1727
In stock
NSN: 5331-01-733-1727
FSC Code: 5331
MPN: 863504226

5331-01-733-8470 (ARP-221P)

NIIN: 01-733-8470
In stock
NSN: 5331-01-733-8470
FSC Code: 5331
MPN: ARP221P

5331-01-733-4779 (367-0575)

NIIN: 01-733-4779
In stock
NSN: 5331-01-733-4779
FSC Code: 5331
MPN: 3670575

5331-01-733-3488 (M6004597)

NIIN: 01-733-3488
In stock
NSN: 5331-01-733-3488
FSC Code: 5331
MPN: M6004597

5331-01-733-0856 (M83248/2-367)

NIIN: 01-733-0856
In stock
NSN: 5331-01-733-0856
FSC Code: 5331
MPN: M832482367

5331-01-733-3749 (6550896)

NIIN: 01-733-3749
In stock
NSN: 5331-01-733-3749
FSC Code: 5331
MPN: 6550896

5331-01-733-3317 (H-83777)

NIIN: 01-733-3317
In stock
NSN: 5331-01-733-3317
FSC Code: 5331
MPN: H83777

5331-01-732-9331 (218109437)

NIIN: 01-732-9331
In stock
NSN: 5331-01-732-9331
FSC Code: 5331
MPN: 218109437

5331-01-732-7268 (S101A12)

NIIN: 01-732-7268
In stock
NSN: 5331-01-732-7268
FSC Code: 5331
MPN: S101A12

5331-01-733-5102 (367-0576)

NIIN: 01-733-5102
In stock
NSN: 5331-01-733-5102
FSC Code: 5331
MPN: 3670576

5331-01-733-4570 (6550899)

NIIN: 01-733-4570
In stock
NSN: 5331-01-733-4570
FSC Code: 5331
MPN: 6550899

5331-01-733-3371 (0161-4236N0 40 6-60)

NIIN: 01-733-3371
In stock
NSN: 5331-01-733-3371
FSC Code: 5331
MPN: 01614236N040660

5331-01-733-1648 (D015D596)

NIIN: 01-733-1648
In stock
NSN: 5331-01-733-1648
FSC Code: 5331
MPN: D015D596

5331-01-733-1611 (D015D589)

NIIN: 01-733-1611
In stock
NSN: 5331-01-733-1611
FSC Code: 5331
MPN: D015D589