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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.

5331-00-599-0035 (48B7864-1)

NIIN: 00-599-0035
In stock
NSN: 5331-00-599-0035
FSC Code: 5331
MPN: 48B78641

5331-00-062-4251 (4891-675222)

NIIN: 00-062-4251
In stock
NSN: 5331-00-062-4251
FSC Code: 5331
MPN: 4891675222

5331-01-274-1050 (4881-001)

NIIN: 01-274-1050
In stock
NSN: 5331-01-274-1050
FSC Code: 5331
MPN: 4881001

5331-00-171-9953 (487842REVB)

NIIN: 00-171-9953
In stock
NSN: 5331-00-171-9953
FSC Code: 5331
MPN: 487842REVB

5331-01-499-6654 (167-7379128)

NIIN: 01-499-6654
In stock
NSN: 5331-01-499-6654
FSC Code: 5331
MPN: 1677379128

5331-01-213-8880 (48671-103)

NIIN: 01-213-8880
In stock
NSN: 5331-01-213-8880
FSC Code: 5331
MPN: 48671103

5331-01-539-6870 (167-7066800-38)

NIIN: 01-539-6870
In stock
NSN: 5331-01-539-6870
FSC Code: 5331
MPN: 167706680038

5331-01-497-6673 (167-7066792-129)

NIIN: 01-497-6673
In stock
NSN: 5331-01-497-6673
FSC Code: 5331
MPN: 1677066792129

5331-01-497-0766 (167-6985280-41)

NIIN: 01-497-0766
In stock
NSN: 5331-01-497-0766
FSC Code: 5331
MPN: 167698528041

5331-01-452-4185 (167-6926166)

NIIN: 01-452-4185
In stock
NSN: 5331-01-452-4185
FSC Code: 5331
MPN: 1676926166

5331-01-452-4188 (167-6926166)

NIIN: 01-452-4188
In stock
NSN: 5331-01-452-4188
FSC Code: 5331
MPN: 1676926166

5331-01-293-6084 (4864816-6)

NIIN: 01-293-6084
In stock
NSN: 5331-01-293-6084
FSC Code: 5331
MPN: 48648166

5331-01-496-2968 (167-6404604-129)

NIIN: 01-496-2968
In stock
NSN: 5331-01-496-2968
FSC Code: 5331
MPN: 1676404604129

5331-01-419-1854 (DF1502-243-13)

NIIN: 01-419-1854
In stock
NSN: 5331-01-419-1854
FSC Code: 5331
MPN: DF150224313

5331-01-508-7419 (16741-PG7-005)

NIIN: 01-508-7419
In stock
NSN: 5331-01-508-7419
FSC Code: 5331
MPN: 16741PG7005

5331-01-479-4937 (1671-00916)

NIIN: 01-479-4937
In stock
NSN: 5331-01-479-4937
FSC Code: 5331
MPN: 167100916

5331-01-437-4527 (16-70001)

NIIN: 01-437-4527
In stock
NSN: 5331-01-437-4527
FSC Code: 5331
MPN: 1670001

5331-01-094-0163 (482T07003-2)

NIIN: 01-094-0163
In stock
NSN: 5331-01-094-0163
FSC Code: 5331
MPN: 482T070032

5331-01-093-9664 (482T07003-2)

NIIN: 01-093-9664
In stock
NSN: 5331-01-093-9664
FSC Code: 5331
MPN: 482T070032

5331-01-535-4410 (1669456C91)

NIIN: 01-535-4410
In stock
NSN: 5331-01-535-4410
FSC Code: 5331
MPN: 1669456C91

5331-00-683-9667 (482412-1)

NIIN: 00-683-9667
In stock
NSN: 5331-00-683-9667
FSC Code: 5331
MPN: 4824121

5331-01-332-8193 (482287C1)

NIIN: 01-332-8193
In stock
NSN: 5331-01-332-8193
FSC Code: 5331
MPN: 482287C1

5331-01-353-9544 (2-166N507-90)

NIIN: 01-353-9544
In stock
NSN: 5331-01-353-9544
FSC Code: 5331
MPN: 2166N50790

5331-01-371-4956 (1664473-4)

NIIN: 01-371-4956
In stock
NSN: 5331-01-371-4956
FSC Code: 5331
MPN: 16644734

5331-00-132-7832 (481767R1)

NIIN: 00-132-7832
In stock
NSN: 5331-00-132-7832
FSC Code: 5331
MPN: 481767R1

5331-00-003-4040 (481567-1)

NIIN: 00-003-4040
In stock
NSN: 5331-00-003-4040
FSC Code: 5331
MPN: 4815671

5331-01-363-2880 (1663095C1)

NIIN: 01-363-2880
In stock
NSN: 5331-01-363-2880
FSC Code: 5331
MPN: 1663095C1

5331-01-363-2879 (1663094C1)

NIIN: 01-363-2879
In stock
NSN: 5331-01-363-2879
FSC Code: 5331
MPN: 1663094C1

5331-01-461-1311 (1662-D)

NIIN: 01-461-1311
In stock
NSN: 5331-01-461-1311
FSC Code: 5331
MPN: 1662D

5331-01-536-9831 (166-2340)

NIIN: 01-536-9831
In stock
NSN: 5331-01-536-9831
FSC Code: 5331
MPN: 1662340

5331-01-533-6914 (16606A54-117)

NIIN: 01-533-6914
In stock
NSN: 5331-01-533-6914
FSC Code: 5331
MPN: 16606A54117

5331-01-539-3213 (16606A54-104)

NIIN: 01-539-3213
In stock
NSN: 5331-01-539-3213
FSC Code: 5331
MPN: 16606A54104

5331-01-424-6572 (16606A87-107)

NIIN: 01-424-6572
In stock
NSN: 5331-01-424-6572
FSC Code: 5331
MPN: 16606A87107

5331-01-533-4849 (16606A54-142)

NIIN: 01-533-4849
In stock
NSN: 5331-01-533-4849
FSC Code: 5331
MPN: 16606A54142

5331-01-535-7710 (16606A21-205)

NIIN: 01-535-7710
In stock
NSN: 5331-01-535-7710
FSC Code: 5331
MPN: 16606A21205

5331-01-348-3320 (16606A54-92)

NIIN: 01-348-3320
In stock
NSN: 5331-01-348-3320
FSC Code: 5331
MPN: 16606A5492

5331-01-348-3324 (16606A21-7)

NIIN: 01-348-3324
In stock
NSN: 5331-01-348-3324
FSC Code: 5331
MPN: 16606A217

5331-01-371-4800 (MIL-DTL-25988/3)

NIIN: 01-371-4800
In stock
NSN: 5331-01-371-4800
FSC Code: 5331
MPN: MILDTL259883

5331-01-348-3321 (16606A21-92)

NIIN: 01-348-3321
In stock
NSN: 5331-01-348-3321
FSC Code: 5331
MPN: 16606A2192

5331-01-365-0216 (16606A07-95)

NIIN: 01-365-0216
In stock
NSN: 5331-01-365-0216
FSC Code: 5331
MPN: 16606A0795

5331-01-348-3323 (16606A21-3)

NIIN: 01-348-3323
In stock
NSN: 5331-01-348-3323
FSC Code: 5331
MPN: 16606A213

5331-01-368-9526 (16606A07-93)

NIIN: 01-368-9526
In stock
NSN: 5331-01-368-9526
FSC Code: 5331
MPN: 16606A0793

5331-01-348-3322 (16606A07-92)

NIIN: 01-348-3322
In stock
NSN: 5331-01-348-3322
FSC Code: 5331
MPN: 16606A0792

5331-01-266-0768 (4809-00)

NIIN: 01-266-0768
In stock
NSN: 5331-01-266-0768
FSC Code: 5331
MPN: 480900

5331-01-255-2565 (4804FF)

NIIN: 01-255-2565
In stock
NSN: 5331-01-255-2565
FSC Code: 5331
MPN: 4804FF

5331-01-255-2564 (4804BB)

NIIN: 01-255-2564
In stock
NSN: 5331-01-255-2564
FSC Code: 5331
MPN: 4804BB

5331-01-032-6490 (4803-0030)

NIIN: 01-032-6490
In stock
NSN: 5331-01-032-6490
FSC Code: 5331
MPN: 48030030

5331-01-246-4362 (48.10.06.5)

NIIN: 01-246-4362
In stock
NSN: 5331-01-246-4362
FSC Code: 5331
MPN: 4810065