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2. Scuba cylinder valve - Wikipedia

   en.wikipedia.org/wiki/Scuba_cylinder_valve

   The 3/4"NGS and 3/4"BSP are very similar, having the same pitch and a pitch diameter that only differs by about 0.2 mm (0.008 in), but they are not compatible, as the thread forms are different. All parallel thread valves are sealed using an O-ring at the top of the neck thread which seals in a chamfer or step in the cylinder neck and against ...

3. British Standard Pipe - Wikipedia

   en.wikipedia.org/wiki/British_Standard_Pipe

   British Standard Pipe (BSP) is a set of technical standards for screw threads that has been adopted internationally for interconnecting and sealing pipes and fittings by mating an external thread with an internal (female) thread.

4. Bonded seal - Wikipedia

   en.wikipedia.org/wiki/Bonded_seal

   A bonded seal commonly seals between bolt head and body. In mechanical engineering, a bonded seal is a type of washer used to provide a seal around a screw or bolt. Originally made by Dowty Group, they are also known as Dowty seals or Dowty washers. [1] Now widely manufactured, they are available in a range of standard sizes and materials [2 ...

5. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   Piping or tubing is usually inserted into fittings to make connections. Connectors are assigned a gender, abbreviated M or F. An example of this is a "3 ⁄ 4-inch female adapter NPT", which would have a corresponding male connection of the same size and thread standard (in this case also NPT).

6. News, Politics, Sports, Mail & Latest Headlines - AOL.com

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   Get the latest news, politics, sports, and weather updates on AOL.com.

7. US-based travel companies plan layoffs ahead of 2025 - AOL

   www.aol.com/news/us-based-travel-companies-plan...

   U.S.-based travel companies, from Marriott International to Booking Holdings are trimming their budgets and workforce ahead of next year as falling leisure travel demand from lower-income ...

8. Seal (mechanical) - Wikipedia

   en.wikipedia.org/wiki/Seal_(mechanical)

   Bonded seal, also known as Dowty seal or Dowty washer. A type of washer with integral gasket, widely used to provide a seal at the entry point of a screw or bolt [2] [3] Bridgman seal, a piston sealing mechanism that creates a high pressure reservoir from a lower pressure source; Split seals [4] are innovative sealing solutions designed to ...

9. How major US stock indexes fared Thursday, 12/26/2024 - AOL

   www.aol.com/major-us-stock-indexes-fared...

   Stock indexes drifted to a mixed finish on Wall Street as some heavyweight technology and communications sector stocks offset gains elsewhere in the market. The S&P 500 slipped less than 0.1% ...