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 5990-01-506-7695
NSN 5960-00-855-4003
NSN 6145-00-813-8396
NSN 5920-01-213-1513
NSN 6610-01-326-0119
NSN 2925-01-043-9786
NSN 5996-00-178-1016
NSN 5925-00-948-6027
NSN 6150-00-938-8151
NSN 6135-01-365-2707
NSN 5945-01-440-9804
NSN 5920-00-800-8998