300 x 275 x 25 4Pc Hvy Dty BTFE/NBR/Pom Piston Seal Assembly Metric

These heavy-duty seals are designed to withstand higher pressures and shock loads with less damage to the seal. T-seal principles are utilized with back-ups being used to protect the seal from contaminants. The compact design allows use of shorter pistons and larger bearing surfaces. 4 pc. piston seals come in many sizes to fit different types of equipment. 4PMMH Parts use a Hytrel® Piston Seal. 4PMMU Parts use a Urethane Piston Seal.
Standard Material: 40% Bronze-filled PTFE/nitrile/nylon
Temperature: -40° to 225°F
Pressure: 0 to 6,000 PSI