Fittings & Fitments

Meaning: 
British Standard Pipe

BSP defines British Standard Pipe sizes and thread specifications.  The BSP standard is very similar to, but NOT equivalent to or compatible with American National Pipe.  Follow the links above for

Meaning: 
British Standard Fine
Meaning: 
British Standard Cycle
Meaning: 
A float-style fill valve

From Wikipedia:

Meaning: 
Aerospace Standard

The AS standards are authored by SAE (Society of Automotive Engineers).

2018
See also: 
Meaning: 
Same as BSPP, G

The Rp thread is a designation for BSPP (British Standard Pipe Parallel).  For example,

Rp 1/4

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