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 6620-00-422-5866
NSN 5835-01-384-3206
NSN 6620-01-053-6650
NSN 6135-01-461-2915
NSN 5945-00-761-5146
NSN 6650-01-417-8143
NSN 6130-01-093-8305
NSN 2925-00-017-9807
NSN 6220-01-624-8953
NSN 5960-01-384-4603
NSN 6240-00-541-7032
NSN 6610-00-408-4775