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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 5331-01-147-4759 P/N M25988/3-239 · MIL-DTL-25988/3 · MIL-R-25988/3 · 3541-31-239 · +1 more
  2. O-RING NSN 5331-01-147-4064 P/N MS28775-377 · MS28775-377 · 2-377N304-75 · SAE-AS28775 · +1 more
  3. O-RING NSN 5331-01-146-8660 P/N MS28775-460 · MS28775-460 · AN6227-87 · SAE-AS28775 · +1 more
  4. O-RING NSN 5331-01-146-7310 P/N A-382SR 8024-70 · N0918 2-382 · 2-382N918-70 · 760-04001-382 · +1 more
  5. O-RING NSN 5331-01-145-8419 P/N 028-12923-000 · 364-48946-000 ITEM 8 · AS568-262 NEOPR ENE-1 · C1124-70 2-262 · +1 more
  6. O-RING NSN 5331-01-145-0821 P/N ASTM D2000 · AS568-470 · 2-470N674-70 · 2-470N674-70 · +1 more
  7. O-RING NSN 5331-01-143-6592 P/N PRP568-912AMS3304 · AMS3304G · AS568B-912 · PRP568-912-1026 -70 · +1 more
  8. O-RING NSN 5331-01-143-1703 P/N 5331PL2242237 · 5331PL1656502 · 001927EF · M83248/2-927 · +1 more
  9. O-RING NSN 5331-01-142-4472 P/N MS28775-363 · MS28775-363 · MS28775-363 · MS28775-363 · +1 more
  10. O-RING NSN 5331-01-142-1323 P/N H45112-3-1953 · H-44338-30 · US-43747-1 ITEM 39 · US-43747-1 ITEM 39 · +1 more
  11. O-RING NSN 5331-01-140-6363 P/N GA24 9/16IN.DIA,15.5IN ID · 983 ITEM 10 · 983 ITEM 10 · GA24 9/16IN.DIA,15.5IN ID · +1 more
  12. PACKING NSN 5331-01-139-6376 P/N 925-7606 · 695-7703-27 · 925-07606-000 · 925-07606-000 · +1 more
  13. O-RING NSN 5331-01-139-1944 P/N MIL-R-25988/1 · MIL-DTL-25988/1 · M25988/3-280 · M25988/1-280 · +1 more
  14. O-RING NSN 5331-01-138-5523 P/N 5331PL0899175 · F-375-B-905-QT-A · 5331PL1941096 · G-375-B-905-QTA · +1 more
  15. O-RING NSN 5331-01-138-5264 P/N 663-2110 · 645021153 · 645021153 · 663 2110 · +1 more
  16. O-RING NSN 5331-01-138-2106 P/N 15596600 · 15349 · 4060695-6 · 70923561 · +1 more
  17. O-RING NSN 5331-01-137-9589 P/N 33336 · 3333600 · E-8709935 PIECE 26 · 33336Y · +1 more
  18. O-RING NSN 5331-01-137-9584 P/N SS-65SW16P ITEM 3 · T-9-65 · SS-65SW16P ITEM 3 · T-9-65 · +1 more
  19. O-RING NSN 5331-01-135-2163 P/N M25988/3-226 · MIL-R-25988/3 · MIL-DTL-25988/3 · 3541-31-226 · +1 more
  20. O-RING NSN 5331-01-134-3298 P/N MS9967-019 · MS9967-019 · MS9967-019 · SAE-AS9967 · +1 more
  21. O-RING NSN 5331-01-134-0768 P/N 9125-964 · 9125-733 · 9125-733 · 43451A-125 · +1 more
  22. O-RING NSN 5331-01-133-0532 P/N M25988/3-111 · MIL-DTL-25988/3 · MIL-R-25988/3 · 10163424 · +1 more
  23. O-RING NSN 5331-01-132-3419 P/N 853-7923 · 853-07923-000 · 695-7785-13 · 695-7785-13 · +1 more
  24. O-RING NSN 5331-01-130-8423 P/N 909-17 907-70 · MIL-DTL-22050 · MILG22050 · M22050-1-239 · +1 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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