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 6610-00-331-3460
NSN 5905-00-903-7559
NSN 6650-00-123-9677
NSN 6105-01-083-0464
NSN 6145-01-516-2927
NSN 5910-01-125-7522
NSN 6645-00-527-6531
NSN 4140-00-602-5973
NSN 5960-01-087-2376
NSN 5910-00-761-6786
NSN 5998-00-223-8422
NSN 6620-01-500-2456