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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.

5331-00-619-7820 (568-154-1148-50)

NIIN: 00-619-7820
In stock
NSN: 5331-00-619-7820
FSC Code: 5331
MPN: 568154114850

5331-01-200-0447 (568131-11)

NIIN: 01-200-0447
In stock
NSN: 5331-01-200-0447
FSC Code: 5331
MPN: 56813111

5331-01-231-0700 (568122-2)

NIIN: 01-231-0700
In stock
NSN: 5331-01-231-0700
FSC Code: 5331
MPN: 5681222

5331-01-231-0698 (568116-2)

NIIN: 01-231-0698
In stock
NSN: 5331-01-231-0698
FSC Code: 5331
MPN: 5681162

5331-01-201-0147 (568119-2)

NIIN: 01-201-0147
In stock
NSN: 5331-01-201-0147
FSC Code: 5331
MPN: 5681192

5331-01-231-5205 (568128-2)

NIIN: 01-231-5205
In stock
NSN: 5331-01-231-5205
FSC Code: 5331
MPN: 5681282

5331-01-207-1508 (568117-17)

NIIN: 01-207-1508
In stock
NSN: 5331-01-207-1508
FSC Code: 5331
MPN: 56811717

5331-01-281-9010 (568135-2)

NIIN: 01-281-9010
In stock
NSN: 5331-01-281-9010
FSC Code: 5331
MPN: 5681352

5331-01-200-0446 (568127-13)

NIIN: 01-200-0446
In stock
NSN: 5331-01-200-0446
FSC Code: 5331
MPN: 56812713

5331-01-256-5243 (568117-22)

NIIN: 01-256-5243
In stock
NSN: 5331-01-256-5243
FSC Code: 5331
MPN: 56811722

5331-01-277-2209 (568115-2)

NIIN: 01-277-2209
In stock
NSN: 5331-01-277-2209
FSC Code: 5331
MPN: 5681152

5331-01-231-0696 (568117-2)

NIIN: 01-231-0696
In stock
NSN: 5331-01-231-0696
FSC Code: 5331
MPN: 5681172

5331-01-113-3596 (568-112)

NIIN: 01-113-3596
In stock
NSN: 5331-01-113-3596
FSC Code: 5331
MPN: 568112

5331-01-360-8013 (2-050N756-75)

NIIN: 01-360-8013
In stock
NSN: 5331-01-360-8013
FSC Code: 5331
MPN: 2050N75675

5331-00-012-0643 (568110-2)

NIIN: 00-012-0643
In stock
NSN: 5331-00-012-0643
FSC Code: 5331
MPN: 5681102

5331-01-164-0892 (568114-2)

NIIN: 01-164-0892
In stock
NSN: 5331-01-164-0892
FSC Code: 5331
MPN: 5681142

5331-01-200-0449 (568035-2)

NIIN: 01-200-0449
In stock
NSN: 5331-01-200-0449
FSC Code: 5331
MPN: 5680352

5331-00-097-6395 (568-047C0MP1235-50)

NIIN: 00-097-6395
In stock
NSN: 5331-00-097-6395
FSC Code: 5331
MPN: 568047C0MP123550

5331-01-207-1501 (568028-7)

NIIN: 01-207-1501
In stock
NSN: 5331-01-207-1501
FSC Code: 5331
MPN: 5680287

5331-01-231-0701 (568029-2)

NIIN: 01-231-0701
In stock
NSN: 5331-01-231-0701
FSC Code: 5331
MPN: 5680292

5331-01-231-5206 (568033-2)

NIIN: 01-231-5206
In stock
NSN: 5331-01-231-5206
FSC Code: 5331
MPN: 5680332

5331-01-237-1224 (568030-2)

NIIN: 01-237-1224
In stock
NSN: 5331-01-237-1224
FSC Code: 5331
MPN: 5680302

5331-01-317-9485 (568023-7)

NIIN: 01-317-9485
In stock
NSN: 5331-01-317-9485
FSC Code: 5331
MPN: 5680237

5331-01-231-5211 (568023-2)

NIIN: 01-231-5211
In stock
NSN: 5331-01-231-5211
FSC Code: 5331
MPN: 5680232

5331-01-234-3814 (568024-2)

NIIN: 01-234-3814
In stock
NSN: 5331-01-234-3814
FSC Code: 5331
MPN: 5680242

5331-00-143-8685 (568-022TEFL0N)

NIIN: 00-143-8685
In stock
NSN: 5331-00-143-8685
FSC Code: 5331
MPN: 568022TEFL0N

5331-01-231-5212 (568016-2)

NIIN: 01-231-5212
In stock
NSN: 5331-01-231-5212
FSC Code: 5331
MPN: 5680162

5331-00-476-7450 (568-017-1148-50)

NIIN: 00-476-7450
In stock
NSN: 5331-00-476-7450
FSC Code: 5331
MPN: 568017114850

5331-01-119-8760 (568016-2)

NIIN: 01-119-8760
In stock
NSN: 5331-01-119-8760
FSC Code: 5331
MPN: 5680162

5331-01-231-5214 (568012-2)

NIIN: 01-231-5214
In stock
NSN: 5331-01-231-5214
FSC Code: 5331
MPN: 5680122

5331-01-231-0694 (568013-2)

NIIN: 01-231-0694
In stock
NSN: 5331-01-231-0694
FSC Code: 5331
MPN: 5680132

5331-01-260-2350 (568-015)

NIIN: 01-260-2350
In stock
NSN: 5331-01-260-2350
FSC Code: 5331
MPN: 568015

5331-01-207-1505 (568012-17)

NIIN: 01-207-1505
In stock
NSN: 5331-01-207-1505
FSC Code: 5331
MPN: 56801217

5331-01-231-0697 (568010-2)

NIIN: 01-231-0697
In stock
NSN: 5331-01-231-0697
FSC Code: 5331
MPN: 5680102

5331-01-277-2210 (568011-17)

NIIN: 01-277-2210
In stock
NSN: 5331-01-277-2210
FSC Code: 5331
MPN: 56801117

5331-01-320-9299 (568010-9)

NIIN: 01-320-9299
In stock
NSN: 5331-01-320-9299
FSC Code: 5331
MPN: 5680109

5331-00-012-0641 (568012-2)

NIIN: 00-012-0641
In stock
NSN: 5331-00-012-0641
FSC Code: 5331
MPN: 5680122

5331-00-476-7687 (568012-8)

NIIN: 00-476-7687
In stock
NSN: 5331-00-476-7687
FSC Code: 5331
MPN: 5680128

5331-01-231-0695 (568006-2)

NIIN: 01-231-0695
In stock
NSN: 5331-01-231-0695
FSC Code: 5331
MPN: 5680062

5331-00-143-8684 (568-008TEFL0N)

NIIN: 00-143-8684
In stock
NSN: 5331-00-143-8684
FSC Code: 5331
MPN: 568008TEFL0N

5331-01-277-0924 (568008-2)

NIIN: 01-277-0924
In stock
NSN: 5331-01-277-0924
FSC Code: 5331
MPN: 5680082

5331-01-087-8827 (568-006)

NIIN: 01-087-8827
In stock
NSN: 5331-01-087-8827
FSC Code: 5331
MPN: 568006

5331-01-133-2095 (568/23-2)

NIIN: 01-133-2095
In stock
NSN: 5331-01-133-2095
FSC Code: 5331
MPN: 568232

5331-00-464-7383 (5-6779-18)

NIIN: 00-464-7383
In stock
NSN: 5331-00-464-7383
FSC Code: 5331
MPN: 5677918

5331-01-092-0130 (5675-196-925)

NIIN: 01-092-0130
In stock
NSN: 5331-01-092-0130
FSC Code: 5331
MPN: 5675196925

5331-99-538-3817 (J/MB5/210/3522PART35)

NIIN: 99-538-3817
In stock
NSN: 5331-99-538-3817
FSC Code: 5331
MPN: JMB52103522PART35

5331-99-530-0156 (J/MB5/210/3522PART34)

NIIN: 99-530-0156
In stock
NSN: 5331-99-530-0156
FSC Code: 5331
MPN: JMB52103522PART34

5331-01-265-2350 (567-014)

NIIN: 01-265-2350
In stock
NSN: 5331-01-265-2350
FSC Code: 5331
MPN: 567014