Ref literature pump repair parts dv-42n through dv-285n series page 67 ref 6
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 6105-01-297-8460
NSN 6150-01-501-7906
NSN 6320-01-512-2031
NSN 6610-00-801-4652
NSN 5925-01-457-2091
NSN 6145-01-279-8774
NSN 7035-01-390-1132
NSN 6685-01-192-6928
NSN 6220-01-180-7386
NSN 6320-01-352-5653
NSN 5935-01-384-2790
NSN 5905-00-189-0034