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 4140-00-635-9195
NSN 2925-01-332-7178
NSN 5965-00-342-5126
NSN 6150-01-657-5530
NSN 6645-01-180-6219
NSN 6150-00-939-5070
NSN 6650-00-471-1117
NSN 6650-01-624-8135
NSN 5960-00-376-5514
NSN 6220-01-100-5093
NSN 5905-00-104-5755
NSN 6320-01-278-2359