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 6110-01-172-4175
NSN 5965-00-948-2809
NSN 6620-00-592-2150
NSN 5925-00-256-8548
NSN 5990-00-226-1152
NSN 2925-00-242-7688
NSN 5998-00-528-9032
NSN 5975-00-817-3728
NSN 5910-01-446-4666
NSN 6130-01-582-9697
NSN 5999-01-024-9547
NSN 6150-01-519-8294