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 5990-01-443-2931
NSN 6145-01-084-1513
NSN 6610-01-421-4396
NSN 5999-01-162-9447
NSN 5965-01-126-7500
NSN 6685-01-530-9426
NSN 5905-01-076-4702
NSN 5950-01-482-6338
NSN 6135-00-889-1068
NSN 4140-01-072-0729
NSN 5855-01-657-7657
NSN 5950-01-562-7278