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 5975-00-767-0976
NSN 6240-01-058-8868
NSN 6685-00-086-9798
NSN 6610-00-248-1559
NSN 6130-01-087-6082
NSN 6620-01-352-5640
NSN 6620-01-545-9837
NSN 6130-01-469-5991
NSN 6150-01-119-2144
NSN 5999-00-655-3867
NSN 5835-01-218-5560
NSN 4140-01-010-2592