This o-ring is supplied in AS568-252 black Viton® (FKM) 70 Shore A measuring an inside diameter of 5.234 in (132.94 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.512 in (140 mm), catalogued under part number SB-V70252-5. It creates a positive seal at flange, piston and rod interfaces without added hardware. This item is further identified as 0.139CSX5.234"IDX5.512"OD.
As a material, Viton® (FKM) delivers long service life in hot, chemically aggressive environments and the industry benchmark where nitrile reaches its thermal limit. Expect good resistance to many acids, aggressive chemicals, and chlorinated solvents. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It should not be specified for service in hot water and steam or amines.
You will find this material specified across oil and gas, chemical processing, and aerospace.
Stocked as SB-V70252-5 and sold by the bag. Nominal inside diameter is listed as 5 1/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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 Viton 75-252-Black-Pk5
uf_description2 0.139"CSX5.234"IDX5.512"OD
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 5.234 inch (132.94 mm)
Actual_OD 5.512 inch (140 mm)
ProductCode Description O-Rings - Bagged - Commodity