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 5920-00-043-5138
NSN 6220-00-963-4689
NSN 5905-01-219-9597
NSN 5990-01-156-7004
NSN 5855-01-505-5144
NSN 5925-00-583-8120
NSN 5945-01-430-2222
NSN 6620-01-643-5531
NSN 6130-01-528-8086
NSN 6130-00-257-8038
NSN 5835-01-290-4397
NSN 5990-00-980-0379