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 6220-00-386-0997
NSN 5975-00-233-6301
NSN 5950-01-302-0518
NSN 6220-01-481-3827
NSN 5915-01-616-9739
NSN 6620-01-448-0572
NSN 5925-01-652-0650
NSN 5998-00-515-2252
NSN 6685-00-100-4753
NSN 5930-01-438-0500
NSN 6650-00-202-4540
NSN 5855-01-213-9076