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 2925-01-283-6740
NSN 5855-00-494-9581
NSN 6240-00-991-6929
NSN 5999-00-127-1542
NSN 5925-00-896-9626
NSN 4140-00-833-6239
NSN 6135-01-205-5965
NSN 7035-01-278-1379
NSN 5990-00-503-4724
NSN 6135-01-036-3495
NSN 6110-00-442-3497
NSN 5930-01-587-9006