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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.

Filter

53,078 items

  1. O-RING NSN 5331-01-548-5321 P/N 7383858-PLC-12385-9 · M83248/2-131 · 7550478-PLC-12385-9 · H547-0001-PLC-12385-9 · +10 more
  2. O-RING NSN 5331-01-548-0417 P/N 7550478-284703-023 · 7383858-284703-023 · H547-0001-284703-023 · G547-0002-284703-023 · +10 more
  3. O-RING NSN 5331-01-467-0669 P/N ST1946-020 · M83485/1-020 · AMS-R-83485/1 · MIL-R-83485/1 · +10 more
  4. O-RING NSN 5331-01-460-9035 P/N ST1946-215 · M83485/1-215 · AMC-R-83485 · MIL-R-83485 · +10 more
  5. O-RING NSN 5331-01-393-2862 P/N 11420-5362-0 · 11420-5362-0 · B06-R/060 · B06-R REFERENCE 060 · +10 more
  6. O-RING NSN 5331-01-388-9422 P/N PE47136-21 · ST1946-902 · AMS-R-83485/1 · M83485/1-902 · +10 more
  7. O-RING NSN 5331-01-388-9212 P/N ST1946-027 · M83485/1-027 · AMS-R-83485 · MIL-R-83485/1 · +10 more
  8. O-RING NSN 5331-01-385-9399 P/N M83248/1-010 · M83248/1-010 · M83248/1-010 · AMS7276 · +10 more
  9. O-RING NSN 5331-01-385-3730 P/N 803-7504748-20811X-14 · M83461/1-932 · M83461/1-932 · N756-70 3-932 · +10 more
  10. O-RING NSN 5331-01-220-1924 P/N 7255-237 PC 65 · 820-5348437-16 · AD-4098-8Y8 PC.9 · AS28778-8 · +10 more
  11. O-RING NSN 5331-01-088-6872 P/N AMS-P-83461/1 · M83461/1-007 · M83461/1-007 · MIL-P-83461/1 · +10 more
  12. O-RING NSN 5331-01-088-6106 P/N 77-35302 ITEM 2 REV A · 123-914-5-90 · D50-0007 ITEM 33 · D50-0007 ITEM 33 · +10 more
  13. O-RING NSN 5331-01-079-8148 P/N S9412-012 · S9412-012 · S9412-012 · MIL-DTL-25988/2 · +10 more
  14. O-RING NSN 5331-01-071-8174 P/N 7866-177 · PX1775-177 · 10V60-141-177 · PRP568-177-457-60 · +10 more
  15. O-RING NSN 5331-01-067-3447 P/N DD-1530 PIECE 11 · PRP568-159-4067-70 · AS28775 · MIL-P-25732C · +10 more
  16. O-RING NSN 5331-01-057-3133 P/N B8104543 PIECE · P48026-033 · PRP568-033-4067-70 · MS28775-033 · +10 more
  17. O-RING NSN 5331-01-049-7909 P/N 7866-282 · 60-P-31-282 · PX1775-282 · 10V60-141-282 · +10 more
  18. O-RING NSN 5331-01-048-3275 P/N ASMS-R-83248/2 TY 1 CL 2 · AS568-914MILG2365TY2 · AMS-R-83248/2 TY 1 CL 2 · SAE AS3581-914 · +10 more
  19. O-RING NSN 5331-01-046-3921 P/N 7866-174 · PX1775-174 · 10V60-141-174 · PRP568-174-457-60 · +10 more
  20. O-RING NSN 5331-01-044-2314 P/N AS568-225 · AMS-P-5510 · AS568-225MIL-P-5510 · 2-225-N552-9 · +10 more
  21. O-RING NSN 5331-01-041-0331 P/N R4975 · MS28775-273 · PRP568-273-4067-70 · MS28775-273 · +10 more
  22. O-RING NSN 5331-01-038-3074 P/N 11102 · 514721 ITEM 29 · 249469-924 · 2CP399 · +10 more
  23. O-RING NSN 5331-01-037-3444 P/N ARP568-021MILG23652 TY2 · MIL-R-83248/2-0 21 · M83248/2-021CP · PRI-QPL-AMS7259CP · +10 more
  24. O-RING NSN 5331-00-761-3574 P/N 218-11646 · PRP218-11646 · PRP568-218-1133-60 · B63115-218 · +10 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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