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 6240-00-890-4776
NSN 6685-00-405-4991
NSN 4140-00-213-9937
NSN 5990-01-649-0635
NSN 5975-00-283-1320
NSN 6320-01-495-6893
NSN 5905-00-264-4035
NSN 5920-01-179-1363
NSN 6240-00-952-1906
NSN 6620-00-267-5273
NSN 6145-01-386-6762
NSN 5930-01-631-2254