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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.

5331-00-118-9048 (22817F)

NIIN: 00-118-9048
In stock
NSN: 5331-00-118-9048
FSC Code: 5331
MPN: 22817F

5331-01-557-9341 (00-067500-00057)

NIIN: 01-557-9341
In stock
NSN: 5331-01-557-9341
FSC Code: 5331
MPN: 0006750000057

5331-01-513-8693 (00-067500-00006)

NIIN: 01-513-8693
In stock
NSN: 5331-01-513-8693
FSC Code: 5331
MPN: 0006750000006

5331-01-561-4987 (00-067500-00068)

NIIN: 01-561-4987
In stock
NSN: 5331-01-561-4987
FSC Code: 5331
MPN: 0006750000068

5331-01-561-3764 (00-067500-00070)

NIIN: 01-561-3764
In stock
NSN: 5331-01-561-3764
FSC Code: 5331
MPN: 0006750000070

5331-01-557-9536 (00-067500-00082)

NIIN: 01-557-9536
In stock
NSN: 5331-01-557-9536
FSC Code: 5331
MPN: 0006750000082

5331-01-513-8719 (00-067500-00102)

NIIN: 01-513-8719
In stock
NSN: 5331-01-513-8719
FSC Code: 5331
MPN: 0006750000102

5331-01-558-6846 (00-067500-00110)

NIIN: 01-558-6846
In stock
NSN: 5331-01-558-6846
FSC Code: 5331
MPN: 0006750000110

5331-01-557-9428 (00-067500-00072)

NIIN: 01-557-9428
In stock
NSN: 5331-01-557-9428
FSC Code: 5331
MPN: 0006750000072

5331-01-558-6865 (00-067500-00013)

NIIN: 01-558-6865
In stock
NSN: 5331-01-558-6865
FSC Code: 5331
MPN: 0006750000013

5331-01-557-9544 (00-067500-00120)

NIIN: 01-557-9544
In stock
NSN: 5331-01-557-9544
FSC Code: 5331
MPN: 0006750000120

5331-01-536-3840 (00-067500-00078)

NIIN: 01-536-3840
In stock
NSN: 5331-01-536-3840
FSC Code: 5331
MPN: 0006750000078

5331-01-537-6763 (00-067500-00142)

NIIN: 01-537-6763
In stock
NSN: 5331-01-537-6763
FSC Code: 5331
MPN: 0006750000142

5331-01-513-8702 (00-067500-00021)

NIIN: 01-513-8702
In stock
NSN: 5331-01-513-8702
FSC Code: 5331
MPN: 0006750000021

5331-01-513-8714 (00-067500-00024)

NIIN: 01-513-8714
In stock
NSN: 5331-01-513-8714
FSC Code: 5331
MPN: 0006750000024

5331-01-558-6844 (00-067500-00127)

NIIN: 01-558-6844
In stock
NSN: 5331-01-558-6844
FSC Code: 5331
MPN: 0006750000127

5331-12-147-1855 (BOSCH-1.900.210.100)

NIIN: 12-147-1855
In stock
NSN: 5331-12-147-1855
FSC Code: 5331
MPN: BOSCH1900210100

5331-01-167-7671 (2-281N304-75)

NIIN: 01-167-7671
In stock
NSN: 5331-01-167-7671
FSC Code: 5331
MPN: 2281N30475

5331-01-006-2103 (2-281V0747-75)

NIIN: 01-006-2103
In stock
NSN: 5331-01-006-2103
FSC Code: 5331
MPN: 2281V074775

5331-01-122-5819 (2-282-N674-70)

NIIN: 01-122-5819
In stock
NSN: 5331-01-122-5819
FSC Code: 5331
MPN: 2282N67470

5331-00-537-3923 (2-282V0747-75)

NIIN: 00-537-3923
In stock
NSN: 5331-00-537-3923
FSC Code: 5331
MPN: 2282V074775

5331-12-127-4622 (OR17.3X2.4-72NBR/872)

NIIN: 12-127-4622
In stock
NSN: 5331-12-127-4622
FSC Code: 5331
MPN: OR173X2472NBR872

5331-12-184-9118 (0R40-2X3WS4572)

NIIN: 12-184-9118
In stock
NSN: 5331-12-184-9118
FSC Code: 5331
MPN: 0R402X3WS4572

5331-12-145-2233 (23176-207200.39.0)

NIIN: 12-145-2233
In stock
NSN: 5331-12-145-2233
FSC Code: 5331
MPN: 23176207200390

5331-12-154-5942 (AWN146-105X5-NB72-SW)

NIIN: 12-154-5942
In stock
NSN: 5331-12-154-5942
FSC Code: 5331
MPN: AWN146105X5NB72SW

5331-12-156-7589 (0007-2057-750)

NIIN: 12-156-7589
In stock
NSN: 5331-12-156-7589
FSC Code: 5331
MPN: 00072057750

5331-12-143-8909 (236MMDAX7MMPERBUNAN)

NIIN: 12-143-8909
In stock
NSN: 5331-12-143-8909
FSC Code: 5331
MPN: 236MMDAX7MMPERBUNAN

5331-01-061-7370 (228303AW)

NIIN: 01-061-7370
In stock
NSN: 5331-01-061-7370
FSC Code: 5331
MPN: 228303AW

5331-12-186-6742 (0007-2023-750)

NIIN: 12-186-6742
In stock
NSN: 5331-12-186-6742
FSC Code: 5331
MPN: 00072023750

5331-12-122-4300 (0R29-2X3-70NBR769)

NIIN: 12-122-4300
In stock
NSN: 5331-12-122-4300
FSC Code: 5331
MPN: 0R292X370NBR769

5331-01-356-5028 (0007-2502-830)

NIIN: 01-356-5028
In stock
NSN: 5331-01-356-5028
FSC Code: 5331
MPN: 00072502830

5331-12-146-8553 (OR10.3X2.4-72NBR/872)

NIIN: 12-146-8553
In stock
NSN: 5331-12-146-8553
FSC Code: 5331
MPN: OR103X2472NBR872

5331-12-150-2037 (AWN146-130X5-NB72-SW)

NIIN: 12-150-2037
In stock
NSN: 5331-12-150-2037
FSC Code: 5331
MPN: AWN146130X5NB72SW

5331-12-148-9497 (23176-203000.45.0)

NIIN: 12-148-9497
In stock
NSN: 5331-12-148-9497
FSC Code: 5331
MPN: 23176203000450

5331-12-143-9845 (5800880-121205.005)

NIIN: 12-143-9845
In stock
NSN: 5331-12-143-9845
FSC Code: 5331
MPN: 5800880121205005

5331-12-144-3466 (RDR100X5ADIN3770NB70)

NIIN: 12-144-3466
In stock
NSN: 5331-12-144-3466
FSC Code: 5331
MPN: RDR100X5ADIN3770NB70

5331-12-148-9507 (0R135X5-72NBR/872)

NIIN: 12-148-9507
In stock
NSN: 5331-12-148-9507
FSC Code: 5331
MPN: 0R135X572NBR872

5331-12-143-4260 (0R15-3-2-4-37PAB769)

NIIN: 12-143-4260
In stock
NSN: 5331-12-143-4260
FSC Code: 5331
MPN: 0R1532437PAB769

5331-12-146-1846 (OR12X3-72NBR/872)

NIIN: 12-146-1846
In stock
NSN: 5331-12-146-1846
FSC Code: 5331
MPN: OR12X372NBR872

5331-01-273-6274 (2-283E515-80)

NIIN: 01-273-6274
In stock
NSN: 5331-01-273-6274
FSC Code: 5331
MPN: 2283E51580

5331-12-156-7576 (0007-2391-750)

NIIN: 12-156-7576
In stock
NSN: 5331-12-156-7576
FSC Code: 5331
MPN: 00072391750

5331-01-198-8291 (2-282S604-70)

NIIN: 01-198-8291
In stock
NSN: 5331-01-198-8291
FSC Code: 5331
MPN: 2282S60470

5331-00-435-8530 (2-284)

NIIN: 00-435-8530
In stock
NSN: 5331-00-435-8530
FSC Code: 5331
MPN: 2284

5331-01-031-8245 (2-284)

NIIN: 01-031-8245
In stock
NSN: 5331-01-031-8245
FSC Code: 5331
MPN: 2284

5331-01-035-4316 (228-3177)

NIIN: 01-035-4316
In stock
NSN: 5331-01-035-4316
FSC Code: 5331
MPN: 2283177

5331-12-122-4261 (0R13-3X2-4-70NBR769)

NIIN: 12-122-4261
In stock
NSN: 5331-12-122-4261
FSC Code: 5331
MPN: 0R133X2470NBR769

5331-01-133-0533 (2-284)

NIIN: 01-133-0533
In stock
NSN: 5331-01-133-0533
FSC Code: 5331
MPN: 2284

5331-00-216-1268 (2-284)

NIIN: 00-216-1268
In stock
NSN: 5331-00-216-1268
FSC Code: 5331
MPN: 2284