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 5920-00-432-7643
NSN 5910-01-250-0543
NSN 4140-00-800-7204
NSN 6645-01-228-8380
NSN 6685-01-126-9462
NSN 5965-01-346-4929
NSN 6620-01-415-5803
NSN 5965-01-120-6086
NSN 2925-00-290-7052
NSN 5950-01-083-1832
NSN 5855-01-264-8599
NSN 6620-01-130-3139