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 5905-01-422-1354
NSN 5960-00-615-5828
NSN 2925-01-222-7764
NSN 6145-01-549-1469
NSN 5999-00-683-6660
NSN 6135-01-604-8739
NSN 6135-01-633-8502
NSN 6610-01-633-8931
NSN 5990-01-421-3325
NSN 5855-01-190-7049
NSN 5945-01-476-6133
NSN 4140-00-004-3668