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 5990-01-633-9503
NSN 6135-00-284-1406
NSN 7035-01-545-0834
NSN 5915-00-922-1629
NSN 4140-00-871-3000
NSN 6620-01-248-0358
NSN 5998-01-418-8489
NSN 5960-01-432-6038
NSN 5925-00-946-7779
NSN 5990-01-382-5364
NSN 6110-00-166-5039
NSN 6620-01-298-0991