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
NSN 6685-00-836-4056
NSN 5930-00-925-3902
NSN 6135-01-468-6491
NSN 5935-01-186-6460
NSN 5950-00-661-2612
NSN 5935-01-583-1584
NSN 7035-00-286-6221
NSN 6110-00-891-7099
NSN 5960-00-169-8943
NSN 4140-01-231-4956
NSN 6320-00-539-9283