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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 5331-00-165-1946 P/N H23470-6 · 845-7286645 ITEM 52 · LL700PC4 · DS60-2-000 ITEM 21 · +56 more
  2. O-RING NSN 5331-00-165-1944 P/N 772-8329001 ITEM NO 1 · 516-1893292 PIE · 6640219-20 · 5489360-20 · +56 more
  3. O-RING NSN 5331-00-582-1560 P/N 7377-235 · MS28775-235 · P15740 · P48026-235 · +55 more
  4. O-RING NSN 5331-00-263-8031 P/N MS29512-08 · 7866-8 · 7866-08 · GS570EM908 · +55 more
  5. O-RING NSN 5331-00-248-3835 P/N 09083724 · R909083724 · 7866-010 · 60-P-31-010 · +55 more
  6. O-RING NSN 5331-00-167-5117 P/N M83248/1-129 · M83248/1-129 · 129-17007 · ST1050-129 · +55 more
  7. O-RING NSN 5331-00-640-9613 P/N 2286147 · 501220 · G557-2-7 · 2286147 · +54 more
  8. O-RING NSN 5331-00-248-3847 P/N 7866-115 · 60-P-31-115 · 60-P-31-114 · M-3126 PIECE 44 · +54 more
  9. O-RING NSN 5331-00-166-1058 P/N 31024-2 · ST1050-110 · PRP110-19357 · 110-19357 · +54 more
  10. O-RING NSN 5331-00-165-1956 P/N AS3209-238 · 238-19357 · PRP238-19357 · GS570AP139C348 · +54 more
  11. O-RING NSN 5331-00-853-2379 P/N 1000-012PC6 · 57-3206-2652ITEM49 · 20256 FIND 22 A · 202994PC28ASSYC · +53 more
  12. O-RING NSN 5331-00-702-5220 P/N 7377-117 · 23062N PIECE 15 · 101-50117 · MS28775-117 · +53 more
  13. O-RING NSN 5331-00-618-1920 P/N MS28775-017 · 377-017 · MS28775-017 · MS28775-017 · +53 more
  14. O-RING NSN 5331-00-292-0577 P/N 7377-007 · E-4336PC10C · 287M0010P005 · 2635-088-38 ITEM 1-158 · +53 more
  15. O-RING NSN 5331-00-194-3715 P/N 7347808 · 332-7117 · SP3536 · 5611-6061 · +53 more
  16. O-RING NSN 5331-00-166-1068 P/N AS3209-116 · M83248/1-116 · R1309P116 · 6843333-116 · +53 more
  17. O-RING NSN 5331-00-982-4259 P/N 230-7377 · 13324CPC97 · 7377-230 · 1000-013PC8 · +52 more
  18. O-RING NSN 5331-00-835-7485 P/N 546925 · 7799-3 · MS28778-3 · GHN10093-8 · +52 more
  19. O-RING NSN 5331-00-579-9833 P/N MS28775-025 · 7377-25 · 7377-025 · MS28775-025 · +52 more
  20. O-RING NSN 5331-00-350-9013 P/N 156-082 · AN6227-10 · 108585 · AN6227-10 · +52 more
  21. O-RING NSN 5331-00-285-9541 P/N NX14306PC184 · N4804PC184 · N12806PC184 · N21168PC13 · +52 more
  22. O-RING NSN 5331-00-263-8028 P/N 7866-04 · 6749216-4 · GA1070 · S0310-904F · +52 more
  23. O-RING NSN 5331-00-248-3831 P/N HVA90-677-1B04845 · 7866-011 · GS570EM011 · 60-P-31-011 · +52 more
  24. O-RING NSN 5331-00-167-5175 P/N 085253 · AS3581-912 · PRP912-19359 · 912-19359 · +52 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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