This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 37 mm (1.457 in), a cross section of 2 mm (0.079 in), and an outside diameter of 41 mm (1.61 in), catalogued under part number H2X37. It creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, Buna-N (Nitrile) is known for low compression set under sustained load, strong abrasion and tear resistance. The compound resists propane and butane, water, and petroleum-based oils. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.
You will find this material specified across automotive, general industrial maintenance, and agricultural equipment.
Order part number H2X37, sold individually. Unit weight is approximately 0.4701 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 2MM CS X 37MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 41 mm (1.61 inch)
Actual_CS 2 mm (0.079 inch)
Actual_ID 37 mm (1.457 inch)
ProductCode Description O-Rings - Metric - Commodity