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 5975-01-143-1269
NSN 4140-01-139-4877
NSN 6685-00-905-7616
NSN 5996-01-050-6910
NSN 6645-01-277-9337
NSN 6320-00-588-2401
NSN 6240-01-206-7882
NSN 5855-01-501-3210
NSN 5999-00-173-8478
NSN 5945-00-806-4616
NSN 5990-00-165-1809
NSN 5960-01-323-6432