Oxygen clean per mil-prf-8622c para 3.2.2
A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
Classification: Gaskets,washers & other seals
NSN 5998-01-268-0369
NSN 5855-01-618-8511
NSN 6650-00-569-1762
NSN 7035-01-433-4401
NSN 6220-01-366-6747
NSN 5835-01-116-2369
NSN 5920-00-694-0483
NSN 5950-00-385-1686
NSN 6110-01-659-8442
NSN 6320-01-397-0399
NSN 6220-00-005-5551
NSN 5999-00-651-6315