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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 5331-00-542-1586 P/N MS28775-118 · 7377-118 · MS28775-118 · P48026-118 · +43 more
  2. O-RING NSN 5331-00-265-1087 P/N 7866-326 · 326-8307 · 326-7866 · GS570EM326 · +43 more
  3. O-RING NSN 5331-00-194-3710 P/N 329-7117 · 329-7377 · 98H1137-32 · PMAP032M · +43 more
  4. O-RING NSN 5331-00-166-8402 P/N 2601755-9 · 2642-820-85 ITEM 25 · 845-5580582 ITEM 25 · 845-7286645 ITEM 69 · +43 more
  5. O-RING NSN 5331-00-166-8392 P/N M83248/1-032 · 2-32-77-545 · DD-4525 ITEM NO 16 · AS3209-032 · +43 more
  6. O-RING NSN 5331-00-579-8195 P/N 7377-239 · MS28775-239 · 202994PC9ASSYH · P48026-239 · +42 more
  7. O-RING NSN 5331-00-248-3837 P/N 2591-008 · GS570EM110 · 7866-110 · 8A5827 · +42 more
  8. O-RING NSN 5331-00-166-1020 P/N 024-17107 · D49565 ITEM 8 · A48557MRF · 649-393-024-0 · +42 more
  9. O-RING NSN 5331-00-166-0968 P/N AS3209-009 · AS3209-009 · R01-009 · LL-1554 REV B ITEM 9.5 · +42 more
  10. O-RING NSN 5331-00-165-1958 P/N PRP240-19357 · 240-19357 · S9026L240 · Z1057AH · +42 more
  11. O-RING NSN 5331-00-833-1428 P/N 7377-142 · 6098285-5 · MS28775-142 · 609285-05 · +41 more
  12. O-RING NSN 5331-00-802-2130 P/N 7377-133 · MS28775-133 · SP132-121 · 4067-70-133 · +41 more
  13. O-RING NSN 5331-00-733-2208 P/N MS29513-112 · GS570EM112 · 45Z91D60 · 7866-112 · +41 more
  14. O-RING NSN 5331-00-579-7923 P/N VA-1887 PIECE 1 · PRP247-7377 · 247-846-70 · 7377-247 · +41 more
  15. O-RING NSN 5331-00-290-9476 P/N 40N613BPC11 · 40N560DPC16 · 40N360CPC16 · 515305A · +41 more
  16. O-RING NSN 5331-00-167-5112 P/N VL1002GE1-123 · J221P123 · 6843333-123 · 13138 · +41 more
  17. O-RING NSN 5331-00-166-8391 P/N 705B504P23 · J221P031 · D11200FF ITEM 1 · M83248/1-031 · +41 more
  18. O-RING NSN 5331-00-166-1030 P/N AS568B-028 · AS3209-028 · ST1000-028 · AS568-028 · +41 more
  19. O-RING NSN 5331-00-165-1953 P/N AS3209-235 · N-677 PIECE 22 · 34665&235 · PL-999F0859 FIND 25 · +41 more
  20. O-RING NSN 5331-00-165-1940 P/N PRP213COMP19457 · SG818-LU-MMA-010 FIG 7-34-7 · 4680-213 · M3838-2570 PC NO.6 · +41 more
  21. O-RING NSN 5331-00-618-1603 P/N 1000-013PC18 · 202994PC10ASSYH · P48026-240 · PRP568-240-4067-70 · +40 more
  22. O-RING NSN 5331-00-265-1075 P/N 7866-218 · R1307P218 · A2329 · 934-23 · +40 more
  23. O-RING NSN 5331-00-167-5138 P/N 152-19357 · 152-16207 · ST1000-152 · DD-4618 RENF NO. 15 · +40 more
  24. O-RING NSN 5331-00-167-5121 P/N AS3209-133 · 10510778 · AS3209-133 · GOV-060-024 · +40 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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