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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.

5331-00-618-4423 (299C412P5)

NIIN: 00-618-4423
In stock
NSN: 5331-00-618-4423
FSC Code: 5331
MPN: 299C412P5

5331-00-005-1501 (299C413-4)

NIIN: 00-005-1501
In stock
NSN: 5331-00-005-1501
FSC Code: 5331
MPN: 299C4134

5331-01-357-8008 (10012-7177)

NIIN: 01-357-8008
In stock
NSN: 5331-01-357-8008
FSC Code: 5331
MPN: 100127177

5331-01-053-1949 (299C412P6)

NIIN: 01-053-1949
In stock
NSN: 5331-01-053-1949
FSC Code: 5331
MPN: 299C412P6

5331-00-806-5232 (299C411P017)

NIIN: 00-806-5232
In stock
NSN: 5331-00-806-5232
FSC Code: 5331
MPN: 299C411P017

5331-00-531-2071 (299C412P12)

NIIN: 00-531-2071
In stock
NSN: 5331-00-531-2071
FSC Code: 5331
MPN: 299C412P12

5331-99-417-2593 (FL1423AISSUE6ITEM23)

NIIN: 99-417-2593
In stock
NSN: 5331-99-417-2593
FSC Code: 5331
MPN: FL1423AISSUE6ITEM23

5331-00-811-3229 (299C202P002)

NIIN: 00-811-3229
In stock
NSN: 5331-00-811-3229
FSC Code: 5331
MPN: 299C202P002

5331-00-004-3588 (299C412P10)

NIIN: 00-004-3588
In stock
NSN: 5331-00-004-3588
FSC Code: 5331
MPN: 299C412P10

5331-00-763-4569 (299C411P10)

NIIN: 00-763-4569
In stock
NSN: 5331-00-763-4569
FSC Code: 5331
MPN: 299C411P10

5331-00-809-5275 (299C202P001)

NIIN: 00-809-5275
In stock
NSN: 5331-00-809-5275
FSC Code: 5331
MPN: 299C202P001

5331-99-301-2368 (100-123-8810)

NIIN: 99-301-2368
In stock
NSN: 5331-99-301-2368
FSC Code: 5331
MPN: 1001238810

5331-99-417-2532 (FL1423AISSUE6ITEM22)

NIIN: 99-417-2532
In stock
NSN: 5331-99-417-2532
FSC Code: 5331
MPN: FL1423AISSUE6ITEM22

5331-01-526-0372 (LP495-103X1-1-8)

NIIN: 01-526-0372
In stock
NSN: 5331-01-526-0372
FSC Code: 5331
MPN: LP495103X118

5331-01-141-7949 (299944-100)

NIIN: 01-141-7949
In stock
NSN: 5331-01-141-7949
FSC Code: 5331
MPN: 299944100

5331-99-832-3419 (100-119-8810)

NIIN: 99-832-3419
In stock
NSN: 5331-99-832-3419
FSC Code: 5331
MPN: 1001198810

5331-01-526-0370 (LP495-103X15-16)

NIIN: 01-526-0370
In stock
NSN: 5331-01-526-0370
FSC Code: 5331
MPN: LP495103X1516

5331-99-605-6594 (VA-49-0051-118)

NIIN: 99-605-6594
In stock
NSN: 5331-99-605-6594
FSC Code: 5331
MPN: VA490051118

5331-01-525-6684 (LP495-103X3-4)

NIIN: 01-525-6684
In stock
NSN: 5331-01-525-6684
FSC Code: 5331
MPN: LP495103X34

5331-99-112-9371 (100-114-1109)

NIIN: 99-112-9371
In stock
NSN: 5331-99-112-9371
FSC Code: 5331
MPN: 1001141109

5331-00-900-9428 (2996473-9)

NIIN: 00-900-9428
In stock
NSN: 5331-00-900-9428
FSC Code: 5331
MPN: 29964739

5331-01-175-9164 (2996473-7)

NIIN: 01-175-9164
In stock
NSN: 5331-01-175-9164
FSC Code: 5331
MPN: 29964737

5331-01-127-0849 (2996473-8)

NIIN: 01-127-0849
In stock
NSN: 5331-01-127-0849
FSC Code: 5331
MPN: 29964738

5331-00-132-6940 (2996473-13)

NIIN: 00-132-6940
In stock
NSN: 5331-00-132-6940
FSC Code: 5331
MPN: 299647313

5331-01-106-0940 (2996473-15)

NIIN: 01-106-0940
In stock
NSN: 5331-01-106-0940
FSC Code: 5331
MPN: 299647315

5331-00-227-1532 (2996473-10)

NIIN: 00-227-1532
In stock
NSN: 5331-00-227-1532
FSC Code: 5331
MPN: 299647310

5331-01-486-6312 (100111W117)

NIIN: 01-486-6312
In stock
NSN: 5331-01-486-6312
FSC Code: 5331
MPN: 100111W117

5331-01-486-6316 (100111W27)

NIIN: 01-486-6316
In stock
NSN: 5331-01-486-6316
FSC Code: 5331
MPN: 100111W27

5331-99-150-9082 (BS1806-110NBRL70)

NIIN: 99-150-9082
In stock
NSN: 5331-99-150-9082
FSC Code: 5331
MPN: BS1806110NBRL70

5331-99-760-3071 (100-110-2275)

NIIN: 99-760-3071
In stock
NSN: 5331-99-760-3071
FSC Code: 5331
MPN: 1001102275

5331-01-359-6711 (5605-1317-001)

NIIN: 01-359-6711
In stock
NSN: 5331-01-359-6711
FSC Code: 5331
MPN: 56051317001

5331-01-218-0875 (299-4557-014A)

NIIN: 01-218-0875
In stock
NSN: 5331-01-218-0875
FSC Code: 5331
MPN: 2994557014A

5331-01-312-7662 (29940-2026)

NIIN: 01-312-7662
In stock
NSN: 5331-01-312-7662
FSC Code: 5331
MPN: 299402026

5331-01-353-2067 (HAL-20-MIL-1000-80PC25)

NIIN: 01-353-2067
In stock
NSN: 5331-01-353-2067
FSC Code: 5331
MPN: HAL20MIL100080PC25

5331-01-121-2759 (2990-9685)

NIIN: 01-121-2759
In stock
NSN: 5331-01-121-2759
FSC Code: 5331
MPN: 29909685

5331-99-513-7948 (1000-9110151)

NIIN: 99-513-7948
In stock
NSN: 5331-99-513-7948
FSC Code: 5331
MPN: 10009110151

5331-00-582-2577 (29822-196)

NIIN: 00-582-2577
In stock
NSN: 5331-00-582-2577
FSC Code: 5331
MPN: 29822196

5331-01-515-2356 (100-087-210)

NIIN: 01-515-2356
In stock
NSN: 5331-01-515-2356
FSC Code: 5331
MPN: 100087210

5331-01-464-0079 (100078-01)

NIIN: 01-464-0079
In stock
NSN: 5331-01-464-0079
FSC Code: 5331
MPN: 10007801

5331-01-464-0078 (100082-01)

NIIN: 01-464-0078
In stock
NSN: 5331-01-464-0078
FSC Code: 5331
MPN: 10008201

5331-01-260-4004 (298-01)

NIIN: 01-260-4004
In stock
NSN: 5331-01-260-4004
FSC Code: 5331
MPN: 29801

5331-01-113-9677 (29791-906)

NIIN: 01-113-9677
In stock
NSN: 5331-01-113-9677
FSC Code: 5331
MPN: 29791906

5331-01-313-7868 (2979413M1)

NIIN: 01-313-7868
In stock
NSN: 5331-01-313-7868
FSC Code: 5331
MPN: 2979413M1

5331-01-006-8882 (29791-914)

NIIN: 01-006-8882
In stock
NSN: 5331-01-006-8882
FSC Code: 5331
MPN: 29791914

5331-01-006-3726 (29791-048)

NIIN: 01-006-3726
In stock
NSN: 5331-01-006-3726
FSC Code: 5331
MPN: 29791048

5331-01-276-0758 (29771-140)

NIIN: 01-276-0758
In stock
NSN: 5331-01-276-0758
FSC Code: 5331
MPN: 29771140

5331-00-150-1651 (29791-009)

NIIN: 00-150-1651
In stock
NSN: 5331-00-150-1651
FSC Code: 5331
MPN: 29791009

5331-00-150-1653 (29791-011)

NIIN: 00-150-1653
In stock
NSN: 5331-00-150-1653
FSC Code: 5331
MPN: 29791011