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 6135-01-521-0378
NSN 5998-01-481-3733
NSN 5895-00-788-9707
NSN 5895-00-646-6634
NSN 6650-01-010-6662
NSN 5915-01-090-0478
NSN 5996-00-222-6049
NSN 4140-00-646-6588
NSN 5915-01-407-4045
NSN 5920-01-139-5137
NSN 6685-00-598-1944
NSN 5920-01-474-6004