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 5975-01-176-5235
NSN 6685-01-242-9982
NSN 6620-01-385-6172
NSN 6220-00-068-1000
NSN 5960-01-038-2195
NSN 5905-01-403-2806
NSN 6135-00-062-5080
NSN 6645-00-938-2173
NSN 6145-01-131-4094
NSN 6240-00-307-9650
NSN 5960-01-084-4987
NSN 6145-01-252-1449