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 5960-01-552-8601
NSN 6110-01-400-4207
NSN 5996-01-347-4656
NSN 5998-01-104-9514
NSN 7035-01-105-3787
NSN 5930-01-597-8255
NSN 5920-01-466-4426
NSN 5930-00-021-8045
NSN 5935-00-197-9463
NSN 4140-01-021-5674
NSN 5960-01-141-1528
NSN 6320-00-160-0899