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 5905-00-347-4476
NSN 2925-01-161-7440
NSN 5996-01-571-1450
NSN 6135-01-180-9611
NSN 6110-01-657-1424
NSN 5999-01-253-9169
NSN 5960-01-352-0451
NSN 6320-01-072-2073
NSN 6610-00-255-8770
NSN 5960-01-116-4576
NSN 6150-01-468-2565
NSN 6620-00-383-8740