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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 5331-01-240-5226 P/N 2502774-34 · 2502774-34 · 2502774-34 · 2502774 · +1 more
  2. O-RING NSN 5331-01-240-1835 P/N B1000-5X18 · 4199970048 · B1000-5X18 · 4199970048 · +1 more
  3. O-RING NSN 5331-01-240-1647 P/N 832285 · US00832285 · 102385 · RR00004329 · +1 more
  4. O-RING NSN 5331-01-239-9428 P/N MS9386-169 · MS9386-169 · 2-169355-75 · MS9386-169 · +1 more
  5. O-RING NSN 5331-01-237-3891 P/N 00-751-531-281 · B1000-454 · 00-751-531-281 · CP-751-531-281 · +1 more
  6. O-RING NSN 5331-01-236-2906 P/N VI70-14C-P4 · M83248/1-114 · M83248/1-114 · SAE-AS83248/1 · +1 more
  7. O-RING NSN 5331-01-219-3494 P/N 22CR895 · 2CR895 · 2CR895 · 45A391 P6 · +1 more
  8. O-RING NSN 5331-01-219-0455 P/N N80854 · M00-50186-G1ITEM22 · 2-212N674-70 · 2-212N674-70 · +1 more
  9. O-RING NSN 5331-01-218-9817 P/N 2CR864 · 22CR864 · 2CR864 · 45A391 P3 PART 8 · +1 more
  10. O-RING NSN 5331-01-218-8847 P/N 0000-235-N807 · 0000-235-N807 · LL-HX4-1803 · LO-012188847 · +1 more
  11. O-RING NSN 5331-01-218-8841 P/N 9000-S6501-73689PC 14 · MS28775-427 · MS28775-427 · SAE-AS28775 · +1 more
  12. O-RING NSN 5331-01-218-1188 P/N 041-011-0066 · 082-004-0028 · 082-004-0028 · 082-004-0028 · +1 more
  13. O-RING NSN 5331-01-217-2875 P/N E3804 PIECE 11 · 44484 · W203984-001 · 44484 · +1 more
  14. O-RING NSN 5331-01-216-7395 P/N 40074 ITEM 35 · 5902384-1 · 5-889N674-70 · 5-889N507-90 · +1 more
  15. O-RING NSN 5331-01-216-5701 P/N 47814117 · 47814117 · 4700814117 · 00014688 · +1 more
  16. O-RING NSN 5331-01-215-6749 P/N MIL-P-25732 · A6689.027.303 · MNM06689027303 · PO012156749 · +1 more
  17. O-RING NSN 5331-01-214-5917 P/N 044813-00 · SL-8504 PIECE 1 · 8338-P · 8338P · +1 more
  18. O-RING NSN 5331-01-214-5089 P/N 64236 · 26799N ITEM 23 · 6423694 · N6423694 · +1 more
  19. O-RING NSN 5331-01-214-2703 P/N MIL-R-25988/4 · MIL-DTL-25988/4 · M25988/4-240 · 3636/1-240 · +1 more
  20. O-RING NSN 5331-01-211-7352 P/N 20A11CM019 · 8776B · 8876B · 20A11CM019 · +1 more
  21. O-RING NSN 5331-01-210-7463 P/N 955566-212 · 955566-212 · 955566-212 · 955566-212 · +1 more
  22. O-RING NSN 5331-01-209-9762 P/N AS29513-176 · MS29513-176 · AS29513-176 · MS29513-176 · +1 more
  23. O-RING NSN 5331-01-208-3677 P/N MIL-R-25988/3 · MIL-DTL-25988/3 · M25988/3-230 · 2-230L1223-60 · +1 more
  24. O-RING NSN 5331-01-207-9383 P/N M83248/2-145 · MIL-R-83248/2 · 5331PL1282829 · SAE-AS83248/2 · +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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