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 5950-00-419-1907
NSN 2925-01-479-3806
NSN 5855-01-539-4296
NSN 6685-01-363-9688
NSN 6620-01-544-4857
NSN 6145-00-681-1585
NSN 6220-00-717-5099
NSN 6320-01-255-2096
NSN 5990-00-161-2797
NSN 5990-01-221-6361
NSN 6220-01-577-0041
NSN 5985-01-131-6250