30 MM ID X 40 MM OD 5 MM SHOULDER

APG stocks the MWP7-030-040-5/7, a Buna-N (Nitrile) Profile P7 Wiper Seal supplied with a 30 mm inside diameter, a 40 mm outside diameter, and a height of 5 mm. A wiper seal removes contaminants on the return stroke to protect downstream sealing elements. This item is further identified as Buna P7 Metric Wipers.

Buna-N (Nitrile) is specified here for low compression set under sustained load, strong abrasion and tear resistance. Expect good resistance to water, propane and butane, and petroleum-based oils. Verify compatibility before use with ozone and direct sunlight or polar solvents.

You will find this material specified across automotive, hydraulic and pneumatic systems, and general industrial maintenance.

Reference part number MWP7-030-040-5/7 when ordering; the item is sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.