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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 5331-01-290-6096 P/N 150-019-1 · 00150-019-1 · 00150-019-1 · 00150-019-1 · +1 more
  2. O-RING NSN 5331-01-287-4833 P/N NAS1611-120A · NAS1611-120CP · NAS1611-120 · NAS1611-120CP · +1 more
  3. O-RING NSN 5331-01-287-4831 P/N NAS1611-010CP · NAS1611-010 · 58330-45 ITEM 30 · 58330-45 ITEM 30CP · +1 more
  4. O-RING NSN 5331-01-287-4828 P/N NAS1612-12A · NAS1613 · NAS1612-12 · NAS1612 · +1 more
  5. O-RING NSN 5331-01-287-4827 P/N NAS1611-226CP · NAS1611-226 · NAS1601-226 · NAS1601-226CP · +1 more
  6. O-RING NSN 5331-01-287-3586 P/N P-0930 ITEM 6 · P-0932 · P-0932 · NS-3983ITEM 19 2IN · +1 more
  7. O-RING NSN 5331-01-286-2641 P/N MIL-R-25988/1 · M25988/1-273 · MIL-DTL-25988/1 · 5331PL2203574 · +1 more
  8. O-RING NSN 5331-01-286-0463 P/N 83-78 · 83-78 · 83-78 · 12577319 · +1 more
  9. O-RING NSN 5331-01-285-7388 P/N 83-140 · 83-140 · 83-140 · 12577318 · +1 more
  10. O-RING NSN 5331-01-285-7206 P/N MS29513-258 · MS29513-258 · AMS-P-5315 · SP-6697 · +1 more
  11. O-RING NSN 5331-01-285-4022 P/N 224-8309 · N0552 2-224 · 224-7509 · O224-8309 · +1 more
  12. O-RING NSN 5331-01-285-1598 P/N ON65244.53.68 · OT65244.53.68 · ON65244.53.68 · OT65244.53.68 · +1 more
  13. O-RING NSN 5331-01-285-0673 P/N CS001466AITEM15 · MS29561-012 · MS29561-012 · 5330PL0162529 · +1 more
  14. O-RING NSN 5331-01-285-0671 P/N MS28775-473 · PL-11761-F-18ITEM456C · MS28775-473 · SAE-AS28775 · +1 more
  15. O-RING NSN 5331-01-284-8129 P/N MIL-R-25988 · M25988/1-272 · MIL-DTL-25988/1 · 2-272L677-70 · +1 more
  16. O-RING NSN 5331-01-283-7785 P/N 4847B · 20A11EM110 · 4847B · 20A11EM110 · +1 more
  17. O-RING NSN 5331-01-282-9514 P/N 254-3178 · NAS1611-254 · 2-254-E515-80 · E0515 2-254 · +1 more
  18. O-RING NSN 5331-01-282-9512 P/N A-908SR8024-70 · 2-908N918-70 · N0918 3-908 · 0-04001-908 · +1 more
  19. O-RING NSN 5331-01-281-5067 P/N NAS1613 · NAS1611-110A · NAS1611-110 · NAS1611-110A · +1 more
  20. O-RING NSN 5331-01-281-3812 P/N T99602420121 · T111028 PIECE 9 · T99602420121 · T111028 PIECE 9 · +1 more
  21. O-RING NSN 5331-01-280-9385 P/N AS3581-260 · MIL-R-83248 · 5331012809385 · SAE-AS3581 · +1 more
  22. O-RING NSN 5331-01-280-7500 P/N 0T65224.35.63 · 0N65224.35.63 · 0T65224.35.63 · 0N65224.35.63 · +1 more
  23. O-RING NSN 5331-01-280-6790 P/N 110-3238 · 5893840-110 · 5893840-110 · 5893840-110 · +1 more
  24. O-RING NSN 5331-01-280-6788 P/N MIL-P-87175/2 · M87175/2-016 · A-016SR253-80 · AS-016Q2-80 · +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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