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Home/Military Standard parts/Seals & Fittings/FSC 5331
Category // FSC 5331 · 53,078 items

O-Ring

Round-section sealing rings used in grooves to seal fluid and gas connections; every item filed here is an O-ring.

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53,078 items

  1. O-RING NSN 5331-01-235-3183 P/N AS9385 · MS9385-07 · MS9385-07 · MS9385-07 · +2 more
  2. O-RING NSN 5331-01-234-6374 P/N MS9386-160 · AMS7267 · MS9386-160 · SAE-AS9386 · +2 more
  3. O-RING NSN 5331-01-231-7478 P/N MIL-R-83248/1 · M83248/1-233 · SAE AS3209-233 · SAE AS3209 · +2 more
  4. O-RING NSN 5331-01-231-5217 P/N MS29561-133 · MS29561-133 · 58901A008133 · 58901A008133 · +2 more
  5. O-RING NSN 5331-01-231-5213 P/N 568218-21 · 568218-38 · PL-52699 PIECE 10 · 568218-21 · +2 more
  6. O-RING NSN 5331-01-231-0702 P/N 1P583 · 1PS12 · 1PS83 · 68114-010 · +2 more
  7. O-RING NSN 5331-01-228-0607 P/N 216-4384970,PC 64 · MIL-R-83285 GRADE 80 · MS33666-241 · M83285-241 · +2 more
  8. O-RING NSN 5331-01-228-0605 P/N A-A-55801 · 216-5007719 PC8 · AA55801-143D7 · ZZ-R-765CLIIBGR70/AS568-143 · +2 more
  9. O-RING NSN 5331-01-227-6862 P/N 2-037E515-8 · 0N174033-1 · 2-037 E0515-80 · 2-037E515-8 · +2 more
  10. O-RING NSN 5331-01-225-5238 P/N ARP568-123 · 4564-123EU · 4564123 · ARP 123 · +2 more
  11. O-RING NSN 5331-01-224-8063 P/N 324514 · 9099205760 · 1096232150 · 9099205760 · +2 more
  12. O-RING NSN 5331-01-223-8395 P/N GS570EM025 · 025-C-69 · 025-C-69 · A-025SR8019-65 · +2 more
  13. O-RING NSN 5331-01-222-9806 P/N SDD-9255 ITEM 17A AND ITEM 17B · SDD-9255 N0.17B · SDD-9255 N0.17A · SDD-9255 ITEM 17A AND ITEM 17B · +2 more
  14. O-RING NSN 5331-01-222-3505 P/N MIL-R-83248/1 · M83248/1-129 · 283486-0001 PIECE 66 · 9884 PC32 · +2 more
  15. O-RING NSN 5331-01-221-1770 P/N AS28775 · MS28775-381 · MS28775-381 · MS28775-381 · +2 more
  16. O-RING NSN 5331-01-221-1122 P/N SK-001ITEM2 · M83461/1-023 · A6689.023.222 · 20210PC25 · +2 more
  17. O-RING NSN 5331-01-220-3490 P/N MS9386-021 · AS9386 · MS9386-021 · SAE-AS9386 · +2 more
  18. O-RING NSN 5331-01-087-8825 P/N S9412-023 · S9412-023 · MIL-DTL-25988/2 · MIL-R-25988/2 · +2 more
  19. O-RING NSN 5331-01-086-9325 P/N MIL-R-25988/2 · M25988/2-008 · MIL-DTL-25988/2 · S9412-008 · +2 more
  20. O-RING NSN 5331-01-086-3576 P/N 300-4684412 ITE · 300-4684412 ITEM 11 · 501-4675681 ITEM 11 · 54-60-1374 · +2 more
  21. O-RING NSN 5331-01-086-1013 P/N 7KP416 · 2GL330 · DDE JB 20229 · 20229 · +2 more
  22. O-RING NSN 5331-01-085-6978 P/N 750030708 · 750030708 · 704540708 · 750030708 · +2 more
  23. O-RING NSN 5331-01-084-0059 P/N 1JA3368J62 · 5-529B612-70/6N151 · B1167 5-529 · 5-529B1167-80 · +2 more
  24. O-RING NSN 5331-01-083-6504 P/N MIL-R-83248/2 · M83248/2-280 · SAE-AS3581 · SAE AS3581-280 · +2 more

Ranked by how many manufacturer cross-references are on file. Every item is quote-only — the federal record carries no price and no stock, and Atlas publishes neither. Browsing stops at page 500 of this class — past that, search by number. Send a whole list →

Questions about O-Ring

What does federal supply class 5331 cover?

Federal supply class 5331 covers O-rings, the round-section sealing rings used in grooves to seal fluid and gas connections. Every item filed here is an O-ring.

How is a part in federal supply class 5331 identified?

Because every item in the class has the same item name, the NSN is what tells one O-ring from another. Each NSN record carries the characteristics on file for that exact ring and the part numbers cross-referenced to it, so a buyer can work from an MS or AS number, a manufacturer number, or a drawing callout. Each item in the class has its own National Stock Number (NSN) record, listed above.

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