This o-ring is supplied in AS568-338 brown Viton® (FKM) 75 Shore A supplied with an inside diameter of 3.1 in (78.74 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.52 in (89.41 mm), catalogued under part number VB75338. It remains the most cost-effective sealing element available for pressurized assemblies.
Viton® (FKM) is specified here for industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. This material stands up to many acids, aromatic hydrocarbons, and chlorinated solvents. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with hot water and steam or low-molecular-weight organic acids.
Typical settings include oil and gas, aerospace, and automotive fuel systems.
Order part number VB75338, sold individually. Unit weight is approximately 11.988 g and nominal inside diameter is listed as 3 1/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description -338 BROWN FKM 75D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 3.1 inch (78.74 mm)
Actual Outside Diameter 3.52 inch (89.41 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity