APG stocks the VITON75381, an AS568-381 black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 11.975 in (304.17 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 12.395 in (314.83 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Viton® (FKM) offers the industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. The material holds up against chlorinated solvents, aggressive chemicals, and many acids. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service.
It sees regular use in high-temperature process equipment, automotive fuel systems, and oil and gas.
Reference part number VITON75381 when ordering; the item is sold individually. Unit weight is approximately 40.38 g and nominal inside diameter is listed as 12 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 -381 BLACK CHEMOURS VITON 75D O-RING
uf_description2 0.210" (5.33MM) CS X 11.975" (304.17MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 11.975 inch (304.17 mm)
Actual_OD 12.395 inch (314.83 mm)
ProductCode Description O-Rings - Bulk - Commodity