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 5999-01-417-2123
NSN 5950-01-495-1879
NSN 5990-01-337-4584
NSN 6620-01-546-4942
NSN 5990-01-655-1437
NSN 6620-01-378-3175
NSN 5835-00-198-4936
NSN 5998-01-413-8433
NSN 5985-01-328-8072
NSN 5925-01-067-0882
NSN 6645-00-816-5337
NSN 5965-00-594-3115