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.
NSN 6620-00-246-5159
NSN 2925-01-416-6927
NSN 5975-00-479-8050
NSN 7035-01-658-1623
NSN 4140-01-079-6886
NSN 5965-01-361-9760
NSN 5985-01-130-6320
NSN 6150-00-947-5736
NSN 6130-00-924-5294
NSN 7035-01-328-7448
NSN 5950-01-556-7989
NSN 6620-01-504-1827