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 5990-01-384-2697
NSN 6650-01-141-5999
NSN 5895-01-472-7333
NSN 5975-01-460-1386
NSN 5910-00-885-8980
NSN 5965-01-143-9577
NSN 2925-00-684-2989
NSN 6110-01-580-0855
NSN 2925-01-494-3259
NSN 5965-00-577-1242
NSN 5999-01-641-7925
NSN 6685-00-971-1248