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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.

5331-01-424-3517 (30075-39235-30)

NIIN: 01-424-3517
In stock
NSN: 5331-01-424-3517
FSC Code: 5331
MPN: 300753923530

5331-01-416-3122 (30073-39580-30)

NIIN: 01-416-3122
In stock
NSN: 5331-01-416-3122
FSC Code: 5331
MPN: 300733958030

5331-01-416-3125 (7230FR-731-5717)

NIIN: 01-416-3125
In stock
NSN: 5331-01-416-3125
FSC Code: 5331
MPN: 7230FR7315717

5331-01-416-3123 (30073-39580-31)

NIIN: 01-416-3123
In stock
NSN: 5331-01-416-3123
FSC Code: 5331
MPN: 300733958031

5331-01-544-0250 (30-0708)

NIIN: 01-544-0250
In stock
NSN: 5331-01-544-0250
FSC Code: 5331
MPN: 300708

5331-01-544-0247 (30-0687)

NIIN: 01-544-0247
In stock
NSN: 5331-01-544-0247
FSC Code: 5331
MPN: 300687

5331-01-451-4054 (P140270-0012)

NIIN: 01-451-4054
In stock
NSN: 5331-01-451-4054
FSC Code: 5331
MPN: P1402700012

5331-01-451-4053 (P140270-0018)

NIIN: 01-451-4053
In stock
NSN: 5331-01-451-4053
FSC Code: 5331
MPN: P1402700018

5331-01-451-4050 (P140270-0014)

NIIN: 01-451-4050
In stock
NSN: 5331-01-451-4050
FSC Code: 5331
MPN: P1402700014

5331-01-321-0447 (69259-128)

NIIN: 01-321-0447
In stock
NSN: 5331-01-321-0447
FSC Code: 5331
MPN: 69259128

5331-01-321-0444 (69238-10)

NIIN: 01-321-0444
In stock
NSN: 5331-01-321-0444
FSC Code: 5331
MPN: 6923810

5331-01-321-0446 (69238-20)

NIIN: 01-321-0446
In stock
NSN: 5331-01-321-0446
FSC Code: 5331
MPN: 6923820

5331-01-321-0445 (69238-11)

NIIN: 01-321-0445
In stock
NSN: 5331-01-321-0445
FSC Code: 5331
MPN: 6923811

5331-01-397-0282 (3004934-001)

NIIN: 01-397-0282
In stock
NSN: 5331-01-397-0282
FSC Code: 5331
MPN: 3004934001

5331-01-397-0280 (3004934-002)

NIIN: 01-397-0280
In stock
NSN: 5331-01-397-0280
FSC Code: 5331
MPN: 3004934002

5331-00-702-3382 (6-91636-2)

NIIN: 00-702-3382
In stock
NSN: 5331-00-702-3382
FSC Code: 5331
MPN: 6916362

5331-01-502-1853 (M2077PC6)

NIIN: 01-502-1853
In stock
NSN: 5331-01-502-1853
FSC Code: 5331
MPN: M2077PC6

5331-00-564-6697 (6-91636-1)

NIIN: 00-564-6697
In stock
NSN: 5331-00-564-6697
FSC Code: 5331
MPN: 6916361

5331-01-515-4816 (30-0422)

NIIN: 01-515-4816
In stock
NSN: 5331-01-515-4816
FSC Code: 5331
MPN: 300422

5331-01-512-6400 (EB9712100-30-0423)

NIIN: 01-512-6400
In stock
NSN: 5331-01-512-6400
FSC Code: 5331
MPN: EB9712100300423

5331-01-071-3406 (691560-6)

NIIN: 01-071-3406
In stock
NSN: 5331-01-071-3406
FSC Code: 5331
MPN: 6915606

5331-01-071-3405 (691556-6)

NIIN: 01-071-3405
In stock
NSN: 5331-01-071-3405
FSC Code: 5331
MPN: 6915566

5331-01-069-6352 (691554-6)

NIIN: 01-069-6352
In stock
NSN: 5331-01-069-6352
FSC Code: 5331
MPN: 6915546

5331-01-542-4696 (M2441PC13)

NIIN: 01-542-4696
In stock
NSN: 5331-01-542-4696
FSC Code: 5331
MPN: M2441PC13

5331-01-535-2551 (30-0411)

NIIN: 01-535-2551
In stock
NSN: 5331-01-535-2551
FSC Code: 5331
MPN: 300411

5331-01-476-2890 (300-4028)

NIIN: 01-476-2890
In stock
NSN: 5331-01-476-2890
FSC Code: 5331
MPN: 3004028

5331-01-565-9218 (300-3988)

NIIN: 01-565-9218
In stock
NSN: 5331-01-565-9218
FSC Code: 5331
MPN: 3003988

5331-01-321-5966 (691-10250)

NIIN: 01-321-5966
In stock
NSN: 5331-01-321-5966
FSC Code: 5331
MPN: 69110250

5331-01-053-0909 (691-10229)

NIIN: 01-053-0909
In stock
NSN: 5331-01-053-0909
FSC Code: 5331
MPN: 69110229

5331-00-978-7993 (691-10034)

NIIN: 00-978-7993
In stock
NSN: 5331-00-978-7993
FSC Code: 5331
MPN: 69110034

5331-01-532-2037 (30-0361)

NIIN: 01-532-2037
In stock
NSN: 5331-01-532-2037
FSC Code: 5331
MPN: 300361

5331-01-512-5229 (SOR6.5X.1875-70NBR)

NIIN: 01-512-5229
In stock
NSN: 5331-01-512-5229
FSC Code: 5331
MPN: SOR65X187570NBR

5331-01-278-6076 (691-00906-0)

NIIN: 01-278-6076
In stock
NSN: 5331-01-278-6076
FSC Code: 5331
MPN: 691009060

5331-01-281-1835 (691-00916)

NIIN: 01-281-1835
In stock
NSN: 5331-01-281-1835
FSC Code: 5331
MPN: 69100916

5331-01-202-6719 (691-00905)

NIIN: 01-202-6719
In stock
NSN: 5331-01-202-6719
FSC Code: 5331
MPN: 69100905

5331-01-128-4019 (691-00910)

NIIN: 01-128-4019
In stock
NSN: 5331-01-128-4019
FSC Code: 5331
MPN: 69100910

5331-00-985-4774 (691-00920-0)

NIIN: 00-985-4774
In stock
NSN: 5331-00-985-4774
FSC Code: 5331
MPN: 691009200

5331-01-240-0681 (691-00265)

NIIN: 01-240-0681
In stock
NSN: 5331-01-240-0681
FSC Code: 5331
MPN: 69100265

5331-01-241-5095 (691-00253)

NIIN: 01-241-5095
In stock
NSN: 5331-01-241-5095
FSC Code: 5331
MPN: 69100253

5331-00-138-4631 (691-00222-0K)

NIIN: 00-138-4631
In stock
NSN: 5331-00-138-4631
FSC Code: 5331
MPN: 691002220K

5331-01-241-2723 (691-00441)

NIIN: 01-241-2723
In stock
NSN: 5331-01-241-2723
FSC Code: 5331
MPN: 69100441

5331-00-433-8086 (691-00219)

NIIN: 00-433-8086
In stock
NSN: 5331-00-433-8086
FSC Code: 5331
MPN: 69100219

5331-01-067-5098 (691-00210)

NIIN: 01-067-5098
In stock
NSN: 5331-01-067-5098
FSC Code: 5331
MPN: 69100210

5331-01-225-0809 (691-00116)

NIIN: 01-225-0809
In stock
NSN: 5331-01-225-0809
FSC Code: 5331
MPN: 69100116

5331-01-067-5097 (691-00217)

NIIN: 01-067-5097
In stock
NSN: 5331-01-067-5097
FSC Code: 5331
MPN: 69100217

5331-00-433-8095 (691-00114)

NIIN: 00-433-8095
In stock
NSN: 5331-00-433-8095
FSC Code: 5331
MPN: 69100114

5331-00-138-4571 (691-00116)

NIIN: 00-138-4571
In stock
NSN: 5331-00-138-4571
FSC Code: 5331
MPN: 69100116

5331-00-139-0093 (691-00115)

NIIN: 00-139-0093
In stock
NSN: 5331-00-139-0093
FSC Code: 5331
MPN: 69100115