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 5998-00-248-5758
NSN 6650-00-143-1889
NSN 6240-01-658-2487
NSN 6620-01-526-2857
NSN 5925-01-417-9203
NSN 5835-01-090-0784
NSN 2925-01-658-4470
NSN 5950-00-149-0486
NSN 5925-01-202-8352
NSN 5925-01-352-0657
NSN 5855-00-446-5921
NSN 6610-00-191-5317