This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 325 mm (12.795 in), a cross section of 7 mm (0.276 in), and an outside diameter of 339 mm (13.35 in), catalogued under part number H7X325. It creates a positive seal at flange, piston and rod interfaces without added hardware.
The material holds up against many alcohols, hydraulic fluids, and petroleum-based oils. Buna-N (Nitrile) is valued for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.
Common environments for this compound include general industrial maintenance, agricultural equipment, and construction equipment.
Stocked as H7X325 and sold individually. Unit weight is approximately 49.77 g. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description 7MM CS X 325MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 339 mm (13.35 inch)
Actual_CS 7 mm (0.276 inch)
Actual_ID 325 mm (12.795 inch)
ProductCode Description O-Rings - Metric - Commodity