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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.

5331-01-454-0916 (HP-612-670)

NIIN: 01-454-0916
In stock
NSN: 5331-01-454-0916
FSC Code: 5331
MPN: HP612670

5331-01-454-0928 (HP-606-660)

NIIN: 01-454-0928
In stock
NSN: 5331-01-454-0928
FSC Code: 5331
MPN: HP606660

5331-01-454-0923 (HP-512-570)

NIIN: 01-454-0923
In stock
NSN: 5331-01-454-0923
FSC Code: 5331
MPN: HP512570

5331-01-454-0919 (HP-506-560)

NIIN: 01-454-0919
In stock
NSN: 5331-01-454-0919
FSC Code: 5331
MPN: HP506560

5331-01-441-1261 (PD11942-33)

NIIN: 01-441-1261
In stock
NSN: 5331-01-441-1261
FSC Code: 5331
MPN: PD1194233

5331-01-454-4796 (HP-412-470)

NIIN: 01-454-4796
In stock
NSN: 5331-01-454-4796
FSC Code: 5331
MPN: HP412470

5331-01-454-4794 (HP-406-460)

NIIN: 01-454-4794
In stock
NSN: 5331-01-454-4794
FSC Code: 5331
MPN: HP406460

5331-01-454-4798 (HP-306-360)

NIIN: 01-454-4798
In stock
NSN: 5331-01-454-4798
FSC Code: 5331
MPN: HP306360

5331-01-454-4797 (HP-312-370)

NIIN: 01-454-4797
In stock
NSN: 5331-01-454-4797
FSC Code: 5331
MPN: HP312370

5331-01-454-4790 (HP-206-260)

NIIN: 01-454-4790
In stock
NSN: 5331-01-454-4790
FSC Code: 5331
MPN: HP206260

5331-01-454-4792 (HP-212-270)

NIIN: 01-454-4792
In stock
NSN: 5331-01-454-4792
FSC Code: 5331
MPN: HP212270

5331-01-454-4793 (HP-112-170)

NIIN: 01-454-4793
In stock
NSN: 5331-01-454-4793
FSC Code: 5331
MPN: HP112170

5331-01-454-4800 (HP-106-160)

NIIN: 01-454-4800
In stock
NSN: 5331-01-454-4800
FSC Code: 5331
MPN: HP106160

5331-01-550-5962 (HOR2-123N)

NIIN: 01-550-5962
In stock
NSN: 5331-01-550-5962
FSC Code: 5331
MPN: HOR2123N

5331-12-323-5666 (HMN45004-01)

NIIN: 12-323-5666
In stock
NSN: 5331-12-323-5666
FSC Code: 5331
MPN: HMN4500401

5331-98-206-2586 (HMHRAEO)

NIIN: 98-206-2586
In stock
NSN: 5331-98-206-2586
FSC Code: 5331
MPN: HMHRAEO

5331-01-384-3038 (HMHRAAW)

NIIN: 01-384-3038
In stock
NSN: 5331-01-384-3038
FSC Code: 5331
MPN: HMHRAAW

5331-01-384-3053 (HMHRAAS)

NIIN: 01-384-3053
In stock
NSN: 5331-01-384-3053
FSC Code: 5331
MPN: HMHRAAS

5331-01-543-0887 (HM026-062-5)

NIIN: 01-543-0887
In stock
NSN: 5331-01-543-0887
FSC Code: 5331
MPN: HM0260625

5331-01-471-3553 (HM022-146)

NIIN: 01-471-3553
In stock
NSN: 5331-01-471-3553
FSC Code: 5331
MPN: HM022146

5331-01-564-2794 (J515HK300X0436H)

NIIN: 01-564-2794
In stock
NSN: 5331-01-564-2794
FSC Code: 5331
MPN: J515HK300X0436H

5331-01-564-2787 (J515HK300X0374H)

NIIN: 01-564-2787
In stock
NSN: 5331-01-564-2787
FSC Code: 5331
MPN: J515HK300X0374H

5331-01-564-2800 (J515HK353X0329H)

NIIN: 01-564-2800
In stock
NSN: 5331-01-564-2800
FSC Code: 5331
MPN: J515HK353X0329H

5331-01-564-2767 (J515HK221X0163H)

NIIN: 01-564-2767
In stock
NSN: 5331-01-564-2767
FSC Code: 5331
MPN: J515HK221X0163H

5331-01-564-2773 (J515HK246X0191H)

NIIN: 01-564-2773
In stock
NSN: 5331-01-564-2773
FSC Code: 5331
MPN: J515HK246X0191H

5331-01-564-2784 (J515HK295X0297H)

NIIN: 01-564-2784
In stock
NSN: 5331-01-564-2784
FSC Code: 5331
MPN: J515HK295X0297H

5331-01-564-2805 (J515HK353X0472H)

NIIN: 01-564-2805
In stock
NSN: 5331-01-564-2805
FSC Code: 5331
MPN: J515HK353X0472H

5331-01-564-2757 (J515HK183X0089H)

NIIN: 01-564-2757
In stock
NSN: 5331-01-564-2757
FSC Code: 5331
MPN: J515HK183X0089H

5331-01-564-2776 (J515HK295X0234H)

NIIN: 01-564-2776
In stock
NSN: 5331-01-564-2776
FSC Code: 5331
MPN: J515HK295X0234H

5331-01-564-2764 (J515HK198X0118H)

NIIN: 01-564-2764
In stock
NSN: 5331-01-564-2764
FSC Code: 5331
MPN: J515HK198X0118H

5331-01-440-3100 (HG-00002-019)

NIIN: 01-440-3100
In stock
NSN: 5331-01-440-3100
FSC Code: 5331
MPN: HG00002019

5331-01-440-3098 (HG-00002-009)

NIIN: 01-440-3098
In stock
NSN: 5331-01-440-3098
FSC Code: 5331
MPN: HG00002009

5331-01-440-3097 (HG-00002-010)

NIIN: 01-440-3097
In stock
NSN: 5331-01-440-3097
FSC Code: 5331
MPN: HG00002010

5331-01-463-1611 (HG-00002-018)

NIIN: 01-463-1611
In stock
NSN: 5331-01-463-1611
FSC Code: 5331
MPN: HG00002018

5331-01-440-3099 (HG-00002-013)

NIIN: 01-440-3099
In stock
NSN: 5331-01-440-3099
FSC Code: 5331
MPN: HG00002013

5331-01-441-5296 (HCON0098)

NIIN: 01-441-5296
In stock
NSN: 5331-01-441-5296
FSC Code: 5331
MPN: HCON0098

5331-01-467-2419 (HCON0066)

NIIN: 01-467-2419
In stock
NSN: 5331-01-467-2419
FSC Code: 5331
MPN: HCON0066

5331-01-535-1421 (HCON0072)

NIIN: 01-535-1421
In stock
NSN: 5331-01-535-1421
FSC Code: 5331
MPN: HCON0072

5331-01-565-1811 (HC-2000-142)

NIIN: 01-565-1811
In stock
NSN: 5331-01-565-1811
FSC Code: 5331
MPN: HC2000142

5331-01-565-1816 (HC-2000-138)

NIIN: 01-565-1816
In stock
NSN: 5331-01-565-1816
FSC Code: 5331
MPN: HC2000138

5331-01-567-9484 (HC-1482)

NIIN: 01-567-9484
In stock
NSN: 5331-01-567-9484
FSC Code: 5331
MPN: HC1482

5331-01-518-8911 (HC-1400)

NIIN: 01-518-8911
In stock
NSN: 5331-01-518-8911
FSC Code: 5331
MPN: HC1400

5331-01-505-6549 (HBV-F2-50-0005-08)

NIIN: 01-505-6549
In stock
NSN: 5331-01-505-6549
FSC Code: 5331
MPN: HBVF250000508

5331-01-506-9528 (HBV-F3-50-0001-15)

NIIN: 01-506-9528
In stock
NSN: 5331-01-506-9528
FSC Code: 5331
MPN: HBVF350000115

5331-01-508-6141 (HBV-F2-24-0004-18)

NIIN: 01-508-6141
In stock
NSN: 5331-01-508-6141
FSC Code: 5331
MPN: HBVF224000418

5331-01-508-5727 (HBV-F2-40-0004-08)

NIIN: 01-508-5727
In stock
NSN: 5331-01-508-5727
FSC Code: 5331
MPN: HBVF240000408

5331-01-507-9392 (HBV-F2-24-0004-)

NIIN: 01-507-9392
In stock
NSN: 5331-01-507-9392
FSC Code: 5331
MPN: HBVF2240004

5331-01-508-6522 (HBV-F2-40-0004-17)

NIIN: 01-508-6522
In stock
NSN: 5331-01-508-6522
FSC Code: 5331
MPN: HBVF240000417