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 6620-01-311-3516
NSN 2925-01-477-3787
NSN 5915-01-563-4161
NSN 5965-01-485-0800
NSN 5990-00-466-2952
NSN 5855-01-618-6370
NSN 6135-01-122-4448
NSN 6150-01-447-0878
NSN 5915-00-088-1563
NSN 4140-00-660-8699
NSN 5945-01-571-8551
NSN 5950-00-890-8533