APG stocks the VB90254, an AS568-254 brown Viton® (FKM) 90 Shore A O-Ring built to an inside diameter of 5.484 in (139.29 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.762 in (146.35 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.
It resists chlorinated solvents, aggressive chemicals, and many acids. Viton® (FKM) is valued for the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. It is not the right choice where low-molecular-weight organic acids or amines are present.
You will find this material specified across chemical processing, automotive fuel systems, and aerospace.
Reference part number VB90254 when ordering; the item is sold individually. Unit weight is approximately 9.8905 g. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description -254 BROWN FKM 90D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 5.484 inch (139.29 mm)
Actual Outside Diameter 5.762 inch (146.35 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity