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 5835-01-580-0446
NSN 5930-00-926-7544
NSN 5996-01-306-2076
NSN 6220-01-363-9713
NSN 5910-00-948-6018
NSN 5835-00-446-2944
NSN 6220-00-079-2943
NSN 5985-01-352-5696
NSN 5915-01-573-5980
NSN 6150-01-448-1432
NSN 5965-01-413-9205
NSN 5950-00-387-5741