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 5331-01-110-7938 P/N AS3551-176 · MS9241-176 · 10399485 · SAE-AS3551 · +1 more
  2. O-RING NSN 5331-01-108-7347 P/N 940001 · AS28775-014 · SAE-AS28775 · 940001 · +1 more
  3. O-RING NSN 5331-01-108-6214 P/N 5268341 · 5268341-2 · 5268341-2 · 2-004 · +1 more
  4. O-RING NSN 5331-01-108-3781 P/N 153175854 · 1531758-54 · 153175854 · 1531758-54 · +1 more
  5. O-RING NSN 5331-01-107-9111 P/N 568-128-4081-90 · A-128-SR8007-90 · N92128 · 2-128-N507-90 · +1 more
  6. O-RING NSN 5331-01-107-1244 P/N 2-326N674-70 · 2-326 BUNA-N · 2-326N674-7 · 2-326N674-70 · +1 more
  7. O-RING NSN 5331-01-106-3475 P/N MIL-R-25988/3 · MIL-DTL-25988/3 · M25988/3-234 · 3541-31-234 · +1 more
  8. O-RING NSN 5331-01-105-8892 P/N N0602 3-908 · 908-7866 · 94520-8 · 94520-8 · +1 more
  9. O-RING NSN 5331-01-104-6824 P/N AS568-042AMS3209 · 2-42 C557-70 · 2-042C557-70 · AS568-042AMS3209 · +1 more
  10. O-RING NSN 5331-01-104-4899 P/N AS568-243MILG1149TY1CL5 · 5331PL1260353 · 10129563 · AS568-243MIL-G- 1149TY1CL5 · +1 more
  11. O-RING NSN 5331-01-103-2593 P/N AS3581-215CP · M83248/2-215 · M83248/2-215CP · AS3581-215CP · +1 more
  12. O-RING NSN 5331-01-102-9882 P/N AMS3302 · AS568-357 · 2-357S595-50 · AS568-357 · +1 more
  13. O-RING NSN 5331-01-102-8391 P/N N0951 2-371 · 2-371N951 · 5P3092 · 8T7166 · +1 more
  14. O-RING NSN 5331-01-102-7979 P/N 102A10001-12 · AS568-035MILR7362TYPE1CMPSNA · 47-071 2-035 · 2-035 47-071-70 · +1 more
  15. O-RING NSN 5331-01-101-8177 P/N MS28775-359 · MS28775-359 · MS28775-359 · SAE-AS28775 · +1 more
  16. O-RING NSN 5331-01-100-8756 P/N R29936 · R29936 · R29936 · R29936 · +1 more
  17. O-RING NSN 5331-01-100-8755 P/N R28782 · R28782 · R28782 · R28782 · +1 more
  18. O-RING NSN 5331-01-098-2934 P/N 16606A54-126 · MIL-R-25988/3 · M25988/3-138 · MIL-DTL-25988/3 · +1 more
  19. O-RING NSN 5331-01-098-1389 P/N 5331PL0776593 · N290012B000 · D-11102-C-001 PIECE 10 · J122731 · +1 more
  20. O-RING NSN 5331-01-096-1275 P/N 2-261N674-70 · AS568-261MIL-G- 21569 CL 1 · AS568-261MIL-G- 21569B CL1 · 07-FC-052-P · +1 more
  21. O-RING NSN 5331-01-095-9388 P/N MS29561-271 · 58901A008271 · 58901A008271 · SAE-AS29561 · +1 more
  22. O-RING NSN 5331-01-095-6238 P/N 306-197 · 306-197 · 68-736 · 68-736 · +1 more
  23. O-RING NSN 5331-01-095-5656 P/N 494550-244 · AS568-270 · 5430-48 · 5430-48 · +1 more
  24. O-RING NSN 5331-01-095-1256 P/N 4640-070S70 · 966051-2C · 966051-2C · AS4640-070S70 · +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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