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 5990-01-074-6549
NSN 5975-00-050-1704
NSN 5975-01-510-4355
NSN 5998-01-640-7965
NSN 5990-01-512-9129
NSN 5895-01-477-8192
NSN 5905-00-796-7909
NSN 5920-00-723-4554
NSN 6320-01-125-3361
NSN 5999-00-942-6502
NSN 5996-00-919-3547
NSN 6135-01-324-4692