BSP British Standard Pipe
BSPT British Standard Pipe Taper
NPT National Pipe Taper
| CLASSIFICATION | COUPLING TYPE | STANDARD | THREAD | TYPICAL CALL OUT | SEALING METHOD |
|---|---|---|---|---|---|
| FEMALE THREADED | A/D | ISO 228-1 JIS B0202 |
BSP | G | Parallel thread |
| ISO 7/1 JIS B0203 |
BSPT | RC | Conical thread | ||
| ANSI B1.20.1 | NPT | N | Conical thread | ||
| MALE THREADED | B/F | ISO 7/1 JIS B0203 |
BSPT | R | Conical thread |
| ANSI B1.20.1 | NPT | N | Conical thread |