V75MD418 is an AS568-418 blue Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 3.6 in (91.44 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.15 in (105.41 mm). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
As a material, Viton® (FKM) offers excellent resistance to compression set and permeation, the industry benchmark where nitrile reaches its thermal limit. Expect good resistance to aromatic hydrocarbons, aggressive chemicals, and chlorinated solvents. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Exposure to amines or ketones and esters will shorten service life.
This o-ring meets FDA requirements for food contact, carries NSF listing, and is metal detectable for HACCP and foreign-body control programs. It sees regular use in automotive fuel systems, aerospace, and chemical processing.
V75MD418 ships individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description -418 BLUE FKM 75D O-RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 3.6 inch (91.44 mm)
Actual Outside Diameter 4.15 inch (105.41 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable