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 6685-00-111-1123
NSN 6320-01-384-3850
NSN 5985-01-066-5927
NSN 6240-01-406-4042
NSN 6130-01-500-1088
NSN 6650-01-646-0139
NSN 5985-00-376-5682
NSN 5985-01-153-2657
NSN 6650-01-580-7478
NSN 6650-00-818-2741
NSN 6135-00-057-2005
NSN 5990-01-035-6869