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 5996-00-452-2187
NSN 5975-01-259-6848
NSN 5999-00-004-9956
NSN 5895-01-310-1535
NSN 6135-01-452-8999
NSN 5975-01-444-4594
NSN 6220-00-825-2783
NSN 5930-01-070-8116
NSN 5910-00-045-9260
NSN
NSN 5920-01-629-9639
NSN 6685-01-322-7801