| 421AK00142B | NO CONTROL SPECIAL FEATURES | 62.3 cm3/r [3.80 in3/r] | 241.3-248.2 bar [3500-3600 lbf/in2] | AUXILIARY MOUNTING COVER PLATE | FLUOROCARBON RUBBER SHAFT SEAL |
| 421AK00134B | BLEED DOWN ORIFICE | 62.3 cm3/r [3.80 in3/r] | 206.8-213.7 bar [3000-3100 lbf/in2] | NO PUMP SPECIAL FEATURES | FLUOROCARBON RUBBER SHAFT SEAL |
| 421AK00127C | NO CONTROL SPECIAL FEATURES | 49.2 cm3/r [3.00 in3/r] | 165.5-172.4 bar [2400-2500 lbf/in2] | NO PUMP SPECIAL FEATURES | STANDARD POLYACRYLATE SHAFT SEAL |
| 421AK00126C | NO CONTROL SPECIAL FEATURES | 49.2 cm3/r [3.00 in3/r] | 206.8-213.7 bar [3000-3100 lbf/in2] | NO PUMP SPECIAL FEATURES | NITRILE SHAFT SEAL |
| 421AK00125C | BLEED DOWN ORIFICE | 49.2 cm3/r [3.00 in3/r] | 206.8-213.7 bar [3000-3100 lbf/in2] | NO PUMP SPECIAL FEATURES | STANDARD POLYACRYLATE SHAFT SEAL |
| 421AK00110C | NO CONTROL SPECIAL FEATURES | 62.3 cm3/r [3.80 in3/r] | 206.8-213.7 bar [3000-3100 lbf/in2] | NO PUMP SPECIAL FEATURES | STANDARD POLYACRYLATE SHAFT SEAL |
| 421AK00106C | NO CONTROL SPECIAL FEATURES | 62.3 cm3/r [3.80 in3/r] | 275.8-282.7 bar [4000-4100 lbf/in2] | MODIFIED ENDCOVER CORNER REMOVED | STANDARD POLYACRYLATE SHAFT SEAL |
| 421AK00100C | BLEED DOWN ORIFICE | 41.0 cm3/r [2.50 in3/r] | 275.8-282.7 bar [4000-4100 lbf/in2] | NO PUMP SPECIAL FEATURES | STANDARD POLYACRYLATE SHAFT SEAL |
| 421AK00096C | BLEED DOWN ORIFICE | 49.2 cm3/r [3.00 in3/r] | 206.8-213.7 bar [3000-3100 lbf/in2] | NO PUMP SPECIAL FEATURES | STANDARD POLYACRYLATE SHAFT SEAL |
| 421AK00088C | NO CONTROL SPECIAL FEATURES | 62.3 cm3/r [3.80 in3/r] | 275.8-282.7 bar [4000-4100 lbf/in2] | NO PUMP SPECIAL FEATURES | STANDARD POLYACRYLATE SHAFT SEAL |