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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.

5331-01-535-7774 (0175-234 20175234)

NIIN: 01-535-7774
In stock
NSN: 5331-01-535-7774
FSC Code: 5331
MPN: 017523420175234

5331-01-530-5795 (02/911615)

NIIN: 01-530-5795
In stock
NSN: 5331-01-530-5795
FSC Code: 5331
MPN: 02911615

5331-01-453-7141 (02/910893)

NIIN: 01-453-7141
In stock
NSN: 5331-01-453-7141
FSC Code: 5331
MPN: 02910893

5331-01-570-9300 (02/912332)

NIIN: 01-570-9300
In stock
NSN: 5331-01-570-9300
FSC Code: 5331
MPN: 02912332

5331-01-558-8462 (02/912398)

NIIN: 01-558-8462
In stock
NSN: 5331-01-558-8462
FSC Code: 5331
MPN: 02912398

5331-01-530-4801 (02/911425)

NIIN: 01-530-4801
In stock
NSN: 5331-01-530-4801
FSC Code: 5331
MPN: 02911425

5331-01-467-4074 (02/910922)

NIIN: 01-467-4074
In stock
NSN: 5331-01-467-4074
FSC Code: 5331
MPN: 02910922

5331-01-561-8591 (0200-001-920)

NIIN: 01-561-8591
In stock
NSN: 5331-01-561-8591
FSC Code: 5331
MPN: 0200001920

5331-01-028-6512 (2-435MILR83248)

NIIN: 01-028-6512
In stock
NSN: 5331-01-028-6512
FSC Code: 5331
MPN: 2435MILR83248

5331-00-456-0014 (24361-A2)

NIIN: 00-456-0014
In stock
NSN: 5331-00-456-0014
FSC Code: 5331
MPN: 24361A2

5331-01-125-1890 (24362-A1)

NIIN: 01-125-1890
In stock
NSN: 5331-01-125-1890
FSC Code: 5331
MPN: 24362A1

5331-01-323-3798 (2-436E515-80)

NIIN: 01-323-3798
In stock
NSN: 5331-01-323-3798
FSC Code: 5331
MPN: 2436E51580

5331-01-058-5412 (2-436S604-70)

NIIN: 01-058-5412
In stock
NSN: 5331-01-058-5412
FSC Code: 5331
MPN: 2436S60470

5331-01-299-3282 (2-436S613-60)

NIIN: 01-299-3282
In stock
NSN: 5331-01-299-3282
FSC Code: 5331
MPN: 2436S61360

5331-00-275-3472 (2-437C1124-70)

NIIN: 00-275-3472
In stock
NSN: 5331-00-275-3472
FSC Code: 5331
MPN: 2437C112470

5331-00-341-6877 (2-437E540-8)

NIIN: 00-341-6877
In stock
NSN: 5331-00-341-6877
FSC Code: 5331
MPN: 2437E5408

5331-01-113-2912 (2-438)

NIIN: 01-113-2912
In stock
NSN: 5331-01-113-2912
FSC Code: 5331
MPN: 2438

5331-01-288-9170 (2-437V709-90)

NIIN: 01-288-9170
In stock
NSN: 5331-01-288-9170
FSC Code: 5331
MPN: 2437V70990

5331-00-482-6900 (2-438)

NIIN: 00-482-6900
In stock
NSN: 5331-00-482-6900
FSC Code: 5331
MPN: 2438

5331-14-359-2781 (02000C0000A20B7)

NIIN: 14-359-2781
In stock
NSN: 5331-14-359-2781
FSC Code: 5331
MPN: 02000C0000A20B7

5331-01-296-1930 (243867-12)

NIIN: 01-296-1930
In stock
NSN: 5331-01-296-1930
FSC Code: 5331
MPN: 24386712

5331-01-303-5381 (24-389)

NIIN: 01-303-5381
In stock
NSN: 5331-01-303-5381
FSC Code: 5331
MPN: 24389

5331-00-955-7589 (2-439)

NIIN: 00-955-7589
In stock
NSN: 5331-00-955-7589
FSC Code: 5331
MPN: 2439

5331-01-065-5954 (2-439)

NIIN: 01-065-5954
In stock
NSN: 5331-01-065-5954
FSC Code: 5331
MPN: 2439

5331-01-326-9281 (2-439)

NIIN: 01-326-9281
In stock
NSN: 5331-01-326-9281
FSC Code: 5331
MPN: 2439

5331-00-114-0118 (2-438S383-7)

NIIN: 00-114-0118
In stock
NSN: 5331-00-114-0118
FSC Code: 5331
MPN: 2438S3837

5331-01-105-1886 (2-438N525-60)

NIIN: 01-105-1886
In stock
NSN: 5331-01-105-1886
FSC Code: 5331
MPN: 2438N52560

5331-00-003-1698 (2-439-47-071)

NIIN: 00-003-1698
In stock
NSN: 5331-00-003-1698
FSC Code: 5331
MPN: 243947071

5331-00-465-6705 (2-439E515-8)

NIIN: 00-465-6705
In stock
NSN: 5331-00-465-6705
FSC Code: 5331
MPN: 2439E5158

5331-01-484-7302 (020-0844-00)

NIIN: 01-484-7302
In stock
NSN: 5331-01-484-7302
FSC Code: 5331
MPN: 020084400

5331-01-338-0258 (2-440)

NIIN: 01-338-0258
In stock
NSN: 5331-01-338-0258
FSC Code: 5331
MPN: 2440

5331-00-555-3786 (24-4009B105)

NIIN: 00-555-3786
In stock
NSN: 5331-00-555-3786
FSC Code: 5331
MPN: 244009B105

5331-00-811-2223 (24-4009B23)

NIIN: 00-811-2223
In stock
NSN: 5331-00-811-2223
FSC Code: 5331
MPN: 244009B23

5331-00-725-9798 (2-440)

NIIN: 00-725-9798
In stock
NSN: 5331-00-725-9798
FSC Code: 5331
MPN: 2440

5331-01-128-9585 (244011-0110)

NIIN: 01-128-9585
In stock
NSN: 5331-01-128-9585
FSC Code: 5331
MPN: 2440110110

5331-00-555-3784 (24-4009B116)

NIIN: 00-555-3784
In stock
NSN: 5331-00-555-3784
FSC Code: 5331
MPN: 244009B116

5331-00-836-3820 (2-441/VM100-75)

NIIN: 00-836-3820
In stock
NSN: 5331-00-836-3820
FSC Code: 5331
MPN: 2441VM10075

5331-00-070-4213 (244-1197)

NIIN: 00-070-4213
In stock
NSN: 5331-00-070-4213
FSC Code: 5331
MPN: 2441197

5331-00-951-2492 (2-442)

NIIN: 00-951-2492
In stock
NSN: 5331-00-951-2492
FSC Code: 5331
MPN: 2442

5331-01-006-9036 (2-441E540-8)

NIIN: 01-006-9036
In stock
NSN: 5331-01-006-9036
FSC Code: 5331
MPN: 2441E5408

5331-01-211-3004 (244203-0003)

NIIN: 01-211-3004
In stock
NSN: 5331-01-211-3004
FSC Code: 5331
MPN: 2442030003

5331-01-183-0987 (2-442)

NIIN: 01-183-0987
In stock
NSN: 5331-01-183-0987
FSC Code: 5331
MPN: 2442

5331-01-123-6204 (2-442N304-75)

NIIN: 01-123-6204
In stock
NSN: 5331-01-123-6204
FSC Code: 5331
MPN: 2442N30475

5331-01-028-0213 (2-442-N674-70)

NIIN: 01-028-0213
In stock
NSN: 5331-01-028-0213
FSC Code: 5331
MPN: 2442N67470

5331-01-236-0486 (2-442V776-70)

NIIN: 01-236-0486
In stock
NSN: 5331-01-236-0486
FSC Code: 5331
MPN: 2442V77670

5331-01-105-9155 (2-443)

NIIN: 01-105-9155
In stock
NSN: 5331-01-105-9155
FSC Code: 5331
MPN: 2443

5331-01-291-0547 (2443-496Z)

NIIN: 01-291-0547
In stock
NSN: 5331-01-291-0547
FSC Code: 5331
MPN: 2443496Z

5331-00-941-3582 (2-444)

NIIN: 00-941-3582
In stock
NSN: 5331-00-941-3582
FSC Code: 5331
MPN: 2444