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 4140-01-616-1918
NSN 5855-01-589-3816
NSN 5960-00-457-5560
NSN 5835-01-293-6453
NSN 5920-00-373-3636
NSN 5925-00-252-8222
NSN 6135-00-180-5125
NSN 7035-00-134-3143
NSN 5905-00-087-5201
NSN 5895-00-008-8272
NSN 2925-01-643-4472
NSN 6135-01-498-7945