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 2925-00-221-4977
NSN 4140-01-033-3624
NSN 7035-00-104-7613
NSN 5990-00-518-7525
NSN 5905-01-422-1354
NSN 5998-01-075-3639
NSN 5935-01-215-1422
NSN 5960-00-722-2486
NSN 5835-01-581-1957
NSN 6145-00-174-9344
NSN 5835-00-185-4919
NSN 6150-00-401-6027