This o-ring is supplied in AS568-319 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 1.037 in (26.34 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.457 in (37.01 mm), catalogued under part number H70MD319. It compresses into its gland to block fluid or gas migration across a joint.
As a material, Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Expect good resistance to propane and butane, many alcohols, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where automotive brake fluid or ketones are present.
The compound is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include fluid power, general industrial maintenance, and construction equipment.
This item is sold individually under part number H70MD319. Nominal inside diameter is listed as 1 1/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description -319 BLACK BUNA 70D O-RING
uf_description2 METAL DETECTABLE, 0.210" (5.33MM) CS X 1.037" (26.34MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 1.037 inch (26.34 mm)
Actual_OD 1.457 inch (37.01 mm)
ProductCode Description O-Rings - FDA / Metal Detectable