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 6220-01-444-4913
NSN 4140-00-438-2485
NSN 5930-00-578-4908
NSN 5975-01-283-6398
NSN 5990-01-411-5930
NSN 5895-01-084-5386
NSN 5998-01-050-9471
NSN 6620-01-011-3449
NSN 6220-01-640-9546
NSN 6685-01-564-2751
NSN 5930-01-528-6602
NSN 5975-00-284-6177