part 81240 Nut, Hex (M6) Cat Pumps code 81240 Details Cat Pumps number81240 DescriptionNut, Hex (M6) Qty per pump3 Fits these pumps Cat Pumps 2SFX 5 2SFX20ES2SFX30ES2SFX30GES2SFX30GS2SFX30GZ