BSPT
For BSPT, governing standard is BSP; region of origin is British Connections; thread type (tapered or parallel) is tapered; seal method is Sealing takes place by distortion of the threads; interchangeability notes is comparable to NPT, except most sizes have a different thread pitch, plus the OD's and thread form are close, but not the same, recorded from its source on 2026-08-13.
- Connection type
- BSPT verified
- Governing standard
- BSP verified
- Region of origin
- British Connections our reading
- Thread type (tapered or parallel)
- tapered verified
- Seal method
- Sealing takes place by distortion of the threads. verified
- Interchangeability notes
- comparable to NPT, except most sizes have a different thread pitch, plus the OD's and thread form are close, but not the same verified
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
British Connections British Standard Pipe (BSP) and British Standard Pipe Tapered (BSPT) connections are comparable to NPT, except most sizes have a different thread pitch, plus the OD’s and thread form are close, but not the same. Sealing takes place by distortion of the threads. Because of this, thread sealants are recommended when securing these connections.
— brennaninc.com, retrieved 2026-08-13
Source
- brennaninc.comhttps://brennaninc.com/connection-types/