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 5975-01-642-9752
NSN 6610-01-406-6696
NSN 6110-00-663-4054
NSN 4140-00-808-0961
NSN 6150-01-399-8612
NSN 5999-00-854-6219
NSN 5990-01-284-3187
NSN 5925-01-611-7104
NSN 5975-00-984-3431
NSN 5935-00-727-9807
NSN 6240-00-683-0329
NSN 5925-01-139-0103