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 4140-01-240-6125
NSN 6240-00-130-2755
NSN 5985-01-616-5550
NSN 5905-01-562-9257
NSN 6150-01-065-7542
NSN 6320-01-344-6511
NSN 5905-01-567-3310
NSN 5975-00-022-1307
NSN 6220-01-213-0177
NSN 5925-00-369-7747
NSN 6620-00-448-4378
NSN 5945-01-097-7759