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 5996-00-990-2192
NSN 6150-00-573-5631
NSN 6650-00-087-6428
NSN 6650-01-351-4544
NSN 5985-01-562-7297
NSN 6135-01-265-1384
NSN 5895-01-504-0407
NSN 5910-01-272-0212
NSN 6610-01-203-8098
NSN 5945-01-588-2125
NSN 6135-01-139-1700
NSN 6650-01-603-8177