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 5975-01-370-4455
NSN 6150-01-104-4323
NSN 6620-00-257-2783
NSN 5905-00-150-1312
NSN 6145-00-278-0697
NSN 5999-01-532-2780
NSN 5945-01-433-1926
NSN 6645-00-056-1580
NSN 5905-00-587-2549
NSN 5950-01-629-5118
NSN 4140-00-134-4463
NSN 6145-01-186-7734