• Made of Viton (fluorocarbon elastomer) for use with a variety of chemicals and fuels
• Round cross-section to provide a seal between cylindrical overlapping surfaces
• Can be used across a wide temperature range from -15 degrees F (-26 degrees C) to 400 degrees F (205 degrees C)
• Durometer (hardness) of 75A for resistance to penetration
• Meets standards defined by Aerospace Standard AS568A

Size:351 | Nominal Inside Diameter:4.725 Inches | Nominal Outside
Diameter:5-1/8 Inches | Nominal Width:0.21 Inches | Inside Diameter
String:4.725 Inches | Outside Diameter:5-1/8 Inches | Item Width String:0.21
inches | Number of Items:100 This Viton O-ring is black in color, round in
shape, has a durometer (hardness) of 75A, and is designed for use in a wide
variety of sealing applications. Viton has excellent heat, fuel, and chemical
resistance. Viton is acceptable for temperature applications between -15
degrees F (-26 degrees C) to 400 degrees F (205 degrees C). It is compatible
for use with non-flammable hydraulic fuels, silicone oil, chlorinated
hydrocarbons (trichlorethylene), fuels, aromatic hydrocarbons (benzene) and
aliphatic hydrocarbons (propane), as well as high vacuum environments, ozone,
and weathering. Viton is vulnerable to low molecular organic acids, ammonia
gas, alkalis, amines, glycol-based brake fluids, and super-heated steam. This
Viton O-ring has a shore durometer of 75A. Shore durometer is the hardness of
a material, and its resistance to permanent indentation. A higher durometer
value indicates greater resistance to indentation on a scale of 0 to 100, with
100 indicating no indentation. O-rings commonly provide a pressure and fluid
seal between cylindrically shaped, overlapping mating surfaces and are
commonly seen in engines, faucets, flanges, valves and various cylinders. They
are circular in shape, with a round cross section and a hole in the center,
similar to a doughnut. O-rings are available in various sizes, and can be
ordered based on required nominal inside diameter (ID), outer diameter (OD),
and cross-sectional (CS) diameter. This Viton O-ring meets standards defined
by Aerospace Standard AS568A, which is the Aerospace Size Standard for
O-rings.