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 7035-01-433-4401
NSN 6240-01-584-6774
NSN 5925-01-535-6590
NSN 6135-00-175-7132
NSN 6150-01-547-0581
NSN 5990-01-162-9220
NSN 6220-01-642-1660
NSN 5905-01-173-7764
NSN 6220-01-031-3263
NSN 5915-01-074-6382
NSN 5945-01-055-7486
NSN 5975-01-645-5658