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 5975-00-276-7559
NSN 5960-00-273-3260
NSN 5920-00-563-3158
NSN 6240-01-455-5638
NSN 6220-01-490-2607
NSN 5855-01-179-8887
NSN 5855-00-407-2801
NSN 2925-01-131-4531
NSN 5930-01-359-2088
NSN 6130-01-461-6255
NSN 5965-01-343-3950
NSN 5905-01-089-7897