APG stocks the V75343, an AS568-343 black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 3.725 in (94.62 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.145 in (105.28 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.
As a material, Viton® (FKM) is widely chosen for long service life in hot, chemically aggressive environments and outstanding high-temperature capability. The material holds up against aromatic hydrocarbons, many acids, and aggressive chemicals. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C).
Maintenance and OEM teams specify it across automotive fuel systems, aerospace, and semiconductor equipment.
Reference part number V75343 when ordering; the item is sold individually. Unit weight is approximately 12.85 g and nominal inside diameter is listed as 3 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Description -343 BLACK FKM 75D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 3.725 inch (94.62 mm)
Actual Outside Diameter 4.145 inch (105.28 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity