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 2925-00-290-7052
NSN 5855-00-885-8452
NSN 5905-00-150-8601
NSN 6650-01-177-0632
NSN 6240-00-006-3725
NSN 5915-01-544-6552
NSN 5855-01-382-5169
NSN 5915-01-239-8931
NSN 5990-00-419-7584
NSN 6240-01-098-4294
NSN 5965-01-186-2051
NSN 5990-00-199-0081