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 6620-00-227-6776
NSN 6320-00-931-4855
NSN 6150-00-635-5950
NSN 5998-00-482-3828
NSN 5895-00-607-0078
NSN 6110-01-276-9423
NSN 5990-01-633-9503
NSN 6130-00-421-2417
NSN 6685-01-625-1320
NSN 6130-00-530-3737
NSN 5960-00-365-9668
NSN 6650-00-273-8732