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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.

5331-01-448-6043 (B398255-72)

NIIN: 01-448-6043
In stock
NSN: 5331-01-448-6043
FSC Code: 5331
MPN: B39825572

5331-00-106-6276 (704-4685272)

NIIN: 00-106-6276
In stock
NSN: 5331-00-106-6276
FSC Code: 5331
MPN: 7044685272

5331-01-101-1365 (7044-013-3)

NIIN: 01-101-1365
In stock
NSN: 5331-01-101-1365
FSC Code: 5331
MPN: 70440133

5331-01-032-8206 (7043-3/4-16)

NIIN: 01-032-8206
In stock
NSN: 5331-01-032-8206
FSC Code: 5331
MPN: 70433416

5331-01-321-2045 (7044-008-3)

NIIN: 01-321-2045
In stock
NSN: 5331-01-321-2045
FSC Code: 5331
MPN: 70440083

5331-01-033-0329 (7043-3/4-15)

NIIN: 01-033-0329
In stock
NSN: 5331-01-033-0329
FSC Code: 5331
MPN: 70433415

5331-01-569-8190 (310-006)

NIIN: 01-569-8190
In stock
NSN: 5331-01-569-8190
FSC Code: 5331
MPN: 310006

5331-01-561-6005 (310-007)

NIIN: 01-561-6005
In stock
NSN: 5331-01-561-6005
FSC Code: 5331
MPN: 310007

5331-01-561-6004 (310-003)

NIIN: 01-561-6004
In stock
NSN: 5331-01-561-6004
FSC Code: 5331
MPN: 310003

5331-01-115-1967 (70351-08011-104)

NIIN: 01-115-1967
In stock
NSN: 5331-01-115-1967
FSC Code: 5331
MPN: 7035108011104

5331-01-311-6278 (70351-08011-105)

NIIN: 01-311-6278
In stock
NSN: 5331-01-311-6278
FSC Code: 5331
MPN: 7035108011105

5331-01-102-8866 (70351-08011-103)

NIIN: 01-102-8866
In stock
NSN: 5331-01-102-8866
FSC Code: 5331
MPN: 7035108011103

5331-01-093-8103 (70351-08011-101)

NIIN: 01-093-8103
In stock
NSN: 5331-01-093-8103
FSC Code: 5331
MPN: 7035108011101

5331-00-942-1863 (70351/710594)

NIIN: 00-942-1863
In stock
NSN: 5331-00-942-1863
FSC Code: 5331
MPN: 70351710594

5331-00-916-9416 (703433-010)

NIIN: 00-916-9416
In stock
NSN: 5331-00-916-9416
FSC Code: 5331
MPN: 703433010

5331-12-304-3695 (700429030002)

NIIN: 12-304-3695
In stock
NSN: 5331-12-304-3695
FSC Code: 5331
MPN: 700429030002

5331-01-129-8888 (703434-908)

NIIN: 01-129-8888
In stock
NSN: 5331-01-129-8888
FSC Code: 5331
MPN: 703434908

5331-01-466-3535 (30X2-64C8)

NIIN: 01-466-3535
In stock
NSN: 5331-01-466-3535
FSC Code: 5331
MPN: 30X264C8

5331-12-314-3485 (700429030004)

NIIN: 12-314-3485
In stock
NSN: 5331-12-314-3485
FSC Code: 5331
MPN: 700429030004

5331-01-330-9614 (703370A)

NIIN: 01-330-9614
In stock
NSN: 5331-01-330-9614
FSC Code: 5331
MPN: 703370A

5331-01-330-9613 (703366A)

NIIN: 01-330-9613
In stock
NSN: 5331-01-330-9613
FSC Code: 5331
MPN: 703366A

5331-00-832-4560 (70-31563-49)

NIIN: 00-832-4560
In stock
NSN: 5331-00-832-4560
FSC Code: 5331
MPN: 703156349

5331-00-599-6610 (7030669P1)

NIIN: 00-599-6610
In stock
NSN: 5331-00-599-6610
FSC Code: 5331
MPN: 7030669P1

5331-01-335-7104 (7028-002)

NIIN: 01-335-7104
In stock
NSN: 5331-01-335-7104
FSC Code: 5331
MPN: 7028002

5331-00-263-8704 (7027448-01)

NIIN: 00-263-8704
In stock
NSN: 5331-00-263-8704
FSC Code: 5331
MPN: 702744801

5331-01-411-0124 (30CT93-114)

NIIN: 01-411-0124
In stock
NSN: 5331-01-411-0124
FSC Code: 5331
MPN: 30CT93114

5331-01-410-7099 (30CT93-114)

NIIN: 01-410-7099
In stock
NSN: 5331-01-410-7099
FSC Code: 5331
MPN: 30CT93114

5331-01-410-7100 (30CT93-114)

NIIN: 01-410-7100
In stock
NSN: 5331-01-410-7100
FSC Code: 5331
MPN: 30CT93114

5331-01-411-0129 (30CT93-114)

NIIN: 01-411-0129
In stock
NSN: 5331-01-411-0129
FSC Code: 5331
MPN: 30CT93114

5331-01-220-1921 (702383-908)

NIIN: 01-220-1921
In stock
NSN: 5331-01-220-1921
FSC Code: 5331
MPN: 702383908

5331-01-134-0216 (702283R1)

NIIN: 01-134-0216
In stock
NSN: 5331-01-134-0216
FSC Code: 5331
MPN: 702283R1

5331-01-346-3487 (3096-001)

NIIN: 01-346-3487
In stock
NSN: 5331-01-346-3487
FSC Code: 5331
MPN: 3096001

5331-01-346-0547 (3091748-1)

NIIN: 01-346-0547
In stock
NSN: 5331-01-346-0547
FSC Code: 5331
MPN: 30917481

5331-01-389-8206 (30917-22CP)

NIIN: 01-389-8206
In stock
NSN: 5331-01-389-8206
FSC Code: 5331
MPN: 3091722CP

5331-01-400-1909 (7327FT-731-5708)

NIIN: 01-400-1909
In stock
NSN: 5331-01-400-1909
FSC Code: 5331
MPN: 7327FT7315708

5331-01-400-1037 (7443MR-731-5708)

NIIN: 01-400-1037
In stock
NSN: 5331-01-400-1037
FSC Code: 5331
MPN: 7443MR7315708

5331-01-400-1039 (7447MR-731-5708)

NIIN: 01-400-1039
In stock
NSN: 5331-01-400-1039
FSC Code: 5331
MPN: 7447MR7315708

5331-01-463-6574 (308L002)

NIIN: 01-463-6574
In stock
NSN: 5331-01-463-6574
FSC Code: 5331
MPN: 308L002

5331-01-535-6288 (3088547P001)

NIIN: 01-535-6288
In stock
NSN: 5331-01-535-6288
FSC Code: 5331
MPN: 3088547P001

5331-01-509-2660 (3088547P2)

NIIN: 01-509-2660
In stock
NSN: 5331-01-509-2660
FSC Code: 5331
MPN: 3088547P2

5331-01-501-6277 (3088547P1)

NIIN: 01-501-6277
In stock
NSN: 5331-01-501-6277
FSC Code: 5331
MPN: 3088547P1

5331-01-274-4331 (7-018)

NIIN: 01-274-4331
In stock
NSN: 5331-01-274-4331
FSC Code: 5331
MPN: 7018

5331-01-047-8731 (701-7863)

NIIN: 01-047-8731
In stock
NSN: 5331-01-047-8731
FSC Code: 5331
MPN: 7017863

5331-01-455-6589 (B-3082-PL)

NIIN: 01-455-6589
In stock
NSN: 5331-01-455-6589
FSC Code: 5331
MPN: B3082PL

5331-01-119-8754 (7016FS160T)

NIIN: 01-119-8754
In stock
NSN: 5331-01-119-8754
FSC Code: 5331
MPN: 7016FS160T

5331-01-342-4637 (3080SJ)

NIIN: 01-342-4637
In stock
NSN: 5331-01-342-4637
FSC Code: 5331
MPN: 3080SJ

5331-01-547-5936 (308036A1)

NIIN: 01-547-5936
In stock
NSN: 5331-01-547-5936
FSC Code: 5331
MPN: 308036A1

5331-99-851-1920 (30-781-1011-59)

NIIN: 99-851-1920
In stock
NSN: 5331-99-851-1920
FSC Code: 5331
MPN: 30781101159