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 5990-00-133-0102
NSN 6220-01-152-5959
NSN 6240-01-641-4662
NSN 5960-01-198-3933
NSN 5996-01-171-2132
NSN 6135-00-170-8819
NSN 6620-01-479-2352
NSN 5960-01-599-9821
NSN 6620-01-388-1430
NSN 5905-00-987-8014
NSN 2925-00-024-6392
NSN 5910-00-347-5211