Hey Rich, does this look right?
filter.bmp
Part Number: 51257
UPC Number: 765809512573
Principal Application: Allis Chalmers (Viton gasket 15250)
All Applications
Style: Cartridge Hydraulic Metal Canister Filter
Service: Hydraulic
Type: Full Flow
Media: Paper
Height: 6.123
Outer Diameter: 5.061
Inner Diameter: 2.570
Beta Ratio: 2/20=14/32
Nominal Micron Rating: 19
Gasket Diameters:
Number 15340, OD=5.943, ID=5.737, Thk=0.103
Number 15250, OD=6.012, ID=5.734, Thk=0.139
* Gaskets are not supplied with filter, need to be ordered
HH