1 required
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 6145-00-515-6931
NSN 5855-01-359-5727
NSN 5996-01-487-4377
NSN 6620-01-444-7053
NSN 5985-00-767-6315
NSN 6685-01-436-1315
NSN 5985-01-194-1000
NSN 6320-01-021-6633
NSN 4140-00-959-4255
NSN 5910-01-293-5326
NSN 5915-01-510-9763
NSN 6145-01-449-1343