APG stocks the SB-V70449-1, an AS568-449 black Viton® (FKM) 70 Shore A O-Ring built to an inside diameter of 9.975 in (253.37 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 10.525 in (267.34 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint. Supplementary detail from the product record: 0.275CSX9.975"IDX10.525"OD.
As a material, Viton® (FKM) offers the industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. The compound resists many acids, engine and transmission fluids, and petroleum oils and fuels. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C).
It sees regular use in aerospace, chemical processing, and automotive fuel systems.
Reference part number SB-V70449-1 when ordering; the item is sold by the bag. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description Viton 75-449-Black-Pk1
uf_description2 0.275"CSX9.975"IDX10.525"OD
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 9.975 inch (253.37 mm)
Actual_OD 10.525 inch (267.34 mm)
ProductCode Description O-Rings - Bagged - Commodity