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 5990-01-392-5682
NSN 5930-01-187-3307
NSN 5975-01-474-7888
NSN 5990-00-003-4464
NSN 5985-00-047-9559
NSN 6110-00-186-2542
NSN 6620-00-920-1671
NSN 5990-00-736-8778
NSN 6135-00-945-0015
NSN 5930-01-361-8648
NSN 6645-00-084-3859
NSN 6610-01-461-8180