SB-V70255-2 is an AS568-255 black Viton® (FKM) 70 Shore A O-Ring with an inside diameter of 5.609 in (142.47 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.887 in (149.53 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Source specification: 0.139CSX5.609"IDX5.887"OD.
It resists aggressive chemicals, engine and transmission fluids, and petroleum oils and fuels. Viton® (FKM) is valued for very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where amines or hot water and steam are present.
You will find this material specified across aerospace, chemical processing, and semiconductor equipment.
Reference part number SB-V70255-2 when ordering; the item is sold by the bag. Nominal inside diameter is listed as 5 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description Viton 75-255-Black-Pk2
uf_description2 0.139"CSX5.609"IDX5.887"OD
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 5.609 inch (142.47 mm)
Actual_OD 5.887 inch (149.53 mm)
ProductCode Description O-Rings - Bagged - Commodity