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 5990-01-605-4769
NSN 4140-01-575-8943
NSN 5945-00-300-5558
NSN 2925-01-016-3111
NSN 5999-00-869-6587
NSN 5910-01-106-1692
NSN 6610-00-261-8159
NSN 6150-01-036-0646
NSN 6645-01-101-9587
NSN 5930-01-170-4205
NSN 6150-00-988-5390
NSN 5915-00-816-9056