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 6620-00-325-0993
NSN 5915-00-988-0014
NSN 5950-00-578-2749
NSN 6220-00-113-1837
NSN 6130-01-400-6123
NSN 6320-01-462-2295
NSN 6105-01-564-8931
NSN 5999-01-653-2325
NSN 4140-01-310-9712
NSN 5950-00-226-1094
NSN 5999-01-230-5675
NSN 4140-01-605-3630