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 6145-00-820-4544
NSN 6220-00-504-2943
NSN 5950-00-280-5738
NSN 5925-01-392-1189
NSN 5945-01-465-0138
NSN 5985-00-971-2056
NSN 5960-01-328-8248
NSN 5998-01-076-5338
NSN 6220-01-242-3799
NSN 6130-01-632-9509
NSN 6240-00-612-0883
NSN 6620-00-689-4456