Part number H50011 is an AS568-011 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 0.301 in (7.65 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.441 in (11.2 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Expect good resistance to propane and butane, water, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).
You will find this material specified across construction equipment, general industrial maintenance, and fluid power.
Reference part number H50011 when ordering; the item is sold individually. Nominal inside diameter is listed as 5/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description -011 BLACK BUNA 50D O-RING
uf_description2 0.070" (1.78MM) CS X 0.301" (7.65MM) ID
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 0.301 inch (7.65 mm)
Actual_OD 0.441 inch (11.2 mm)
ProductCode Description O-Rings - Bulk - Commodity