seal washer

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• washer — ► NOUN 1) a person or device that washes. 2) a small flat ring fixed between a nut and bolt to spread the pressure or between two joining surfaces to act as a spacer or seal …   English terms dictionary

• washer — [wôsh′ər] n. 1. a person who washes 2. a flat disk or ring of metal, leather, rubber, etc., used variously to make a seat for the head of a bolt or for a nut or faucet valve, to lock a nut in place, to provide a bearing surface, to serve as a… …   English World dictionary

• Washer (hardware) — Assorted washers: flat, split, star and insulated A washer is a thin plate (typically disk shaped) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a screw or nut. Other uses are… …   Wikipedia

• Seal (mechanical) — Compression seal example A mechanical seal is a device which helps join systems or mechanisms together by preventing leakage (e.g., in a plumbing system), containing pressure, or excluding contamination. The effectiveness of a seal is dependent… …   Wikipedia

• seal — [1] A flexible ring, disc or washer that prevents the passage of liquid, air, gas or dirt. [2] To prevent the passage of liquid, air, gas, etc. by means of a seal or sealant (e.g., on seams, joints, flanges). [3] to coat a surface (e.g., when… …   Dictionary of automotive terms

• Bodok seal — The Bodok seal is a specialised washer that ensures a gas tight seal between the cylinder yoke or regulator of an anaesthetic machine or any medical device requiring a gas supply, and a gas cylinder. It was introduced along with the pin index… …   Wikipedia

• Cryogenic seal — Cryogenic seals provide a mechanical containment mechanism for materials held at cryogenic temperatures, such as cryogenic fluids. Various techniques, including soldering and welding are available for creating seals, however specialized materials …   Wikipedia

• O-ring boss seal — An O Ring boss seal is a technique for joining two fluid carrying pipes, hoses or tubing. In an o ring boss (abbreviated ORB) system, a male threaded part is inserted into a female threaded part, providing a mechanical seal. This system differs… …   Wikipedia

• crush washer — A disc with a hole in the center. It is placed around the threads of a bolt and secured with a nut or screwed into a hole. When the head of the bolt is forced against it, the washer is squashed. Crush washers are used on some spark plugs to… …   Dictionary of automotive terms

• protector washer — A filter disc between the primary piston and primary seal which supports and protects the primary seal when the brake system is under pressure …   Dictionary of automotive terms

• Washing machine — This article is about the laundry cleaning apparatus. For the Sonic Youth album, see Washing Machine (album). A typical modern front loading washing machine Irreler Bauerntradition shows an early Miele was …   Wikipedia