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  2. 4-7/16 ID, 4-1/4 Black, Round, Durometer, 90A O-Ring, Viton 156 OD, 10) of (Pack Width 3/32
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156 Viton O-Ring, 90A Durometer, Round, Black, 4-1/4 ID, 4-7/16 OD, 3/32 Width (Pack of 10)

This O-ring is made of black Viton and has a durometer of 90A, a round cross-section, and can be used across a wide temperature range (-15 degrees F /-26 degrees C to 400 degrees F/ 205 degrees C). Designed for use in a wide variety of sealing applications, this Viton O-ring meets standards defined by Aerospace Standard AS568A, which is the Aerospace Size Standard for O-rings.

Viton (fluorocarbon elastomer) has heat, fuel, and chemical resistance and 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.

The durometer hardness of this Viton O-ring is 90A. Durometers measure 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, a value of 0 indicates that a sample was completely penetrated, while a value of 100 shows no indentation in the sample. The letter following the number identifies the shore scale, which is either shore A or D. Shore A is used for softer plastics, while shore D is used for harder plastics.

O-rings 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 AS568A dash sizes, which is the standardized sizing for O-rings, and defines the nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter of an O-ring.

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4-7/16 ID, 4-1/4 Black, Round, Durometer, 90A O-Ring, Viton 156 OD, 10) of (Pack Width 3/32 O-Rings

welcome to the second in our series of four common plumbing emergencies that may happen in your home.

part 1 – a burst pipe – can cause havoc and severe damage to your home.

part 2 – a clogged drain pipe – can be frustrating, messy, and expensive if you are not prepared to remedy the situation immediately.

4-7/16 ID, 4-1/4 Black, Round, Durometer, 90A O-Ring, Viton 156 OD, 10) of (Pack Width 3/32 O-Rings

there are several ways to attack that blocked drain pipe which usually occurs in the kitchen, shower, or bathtub.

the easiest and fastest way is to use a common household plunger. it’s a good idea to have one on hand to quickly remedy the situation.  if you are dealing with your kitchen sink that has food particles stuck, a plunger will work almost 100% of the time.

use care, though; grease and soap gunk are harder to plunge and you may accidentally cause a bigger stoppage if you plunge too hard and force the blockage further down the drain.

another option is to use a zip it drain tool, which can be purchased at home depot or any other hardware store. this is a good option for bathroom drain pipe clogs. it’s a long plastic tool with small “teeth” on it that grabs hair and other debris that is stuck in the drain. this is an inexpensive and effective way to clear the drain.

4-7/16 ID, 4-1/4 Black, Round, Durometer, 90A O-Ring, Viton 156 OD, 10) of (Pack Width 3/32 O-Rings

if you have an unusual amount of hair and soap debris that cannot be cleared with a zip it drain tool, try using a commercial drain opener that attaches to a common garden hose. the water pressure is what forces the clog to be cleared.

if, after trying a plunger and drain cleaning tools, you still have a nasty clog, it’s time to actually remove the trap below the sink and start searching for the cause of the problem. you can use a sturdy bottle brush to remove the clog, being sure when you replace the trap, you clean it thoroughly with warm, soapy water.

if, after opening the trap you can’t see a clog, you probably have a blockage inside the pipe. before using chemicals, you can try an auger, most commonly known as a “snake.” an auger has a handle and you crank it, trying to remove whatever is in the drain pipe.

if all of the above fails, you may have to use a liquid drain opener. we recommend using an environmentally friendly one and always wear rubber gloves and eye protection.  be sure to carefully read the directions, especially if you choose to use something with very strong chemicals.



4-7/16 ID, 4-1/4 Black, Round, Durometer, 90A O-Ring, Viton 156 OD, 10) of (Pack Width 3/32 O-Rings