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 5990-01-660-9694
NSN 6645-00-634-9317
NSN 6220-00-111-0921
NSN 5925-01-339-1443
NSN 5905-01-471-3234
NSN 5910-01-451-8790
NSN 5910-00-781-2675
NSN 5960-00-878-9486
NSN 6110-01-433-7638
NSN 6135-01-040-1446
NSN 5855-01-444-4859
NSN 5935-01-605-0841