NPT to BSF thread adapter

[Hobby2409]

I need to put a 1/8-27 NPT mail thread (on an oil pressure sender) into a 3/8 20G BSF whole, on an antique truck. Would making an adapter be possible? Difficult? Anyone interested?

 

[OTmachine]

Maybe look here: https://www.mcmaster.com/products/brass-bspp-to-npt-pipe-adapters/

 

[markba633csi]

Buy it, it's the easiest way to go

 

[extropic]

Wondering why you don't use an oil pressure sender that comes with 3/8-20 BSF thread? Doesn't Rover use them?

I learned that BSF is a Whitworth style thread (55°) straight thread.
If I had to make one, I think I would buy a 3/8-20 BSF hex head bolt, then drill through and tap (the head end) for 1/8" NPT.

Because the BSF is a straight thread, what is the plan to seal it?

How deep can the adaptor extend into the female hole?

Have you seen these?

https://www.holden.co.uk/p/_t_piece_adaptor_3_8_in_bsfhttps://www.holden.co.uk/p/_t_piece_adaptor_3_8_in_bsf

Buy APS Oil Pressure Tee Pieces from Competition Supplies - Worldwide Shipping Available

 

[Hobby2409]

Have you seen these?

https://www.holden.co.uk/p/_t_piece_adaptor_3_8_in_bsfhttps://www.holden.co.uk/p/_t_piece_adaptor_3_8_in_bsf

Buy APS Oil Pressure Tee Pieces from Competition Supplies - Worldwide Shipping Available

Thanks! I guess I need to brush up on my Google skills. I'll give that a try

 

[Hobby2409]

Maybe look here: https://www.mcmaster.com/products/brass-bspp-to-npt-pipe-adapters/

Is BSPP the same as BSF? I haven't seen a BSF to NSF adapter anywhere.

 

[OTmachine]

Is BSPP the same as BSF? I haven't seen a BSF to NSF adapter anywhere.

No. Often wondered myself, 19 vs 20 tpi). Apparently used on grease fittings. Often wondered why our parts guy could not come up with the correct parts, (among other parts).

British Standard Fine Thread | BSF Thread Chart | Apollo International

British Standard Fine Thread or BSF Thread is a screw thread form, as a fine-pitch alternative to British Standard Whitworth (BSW) thread.

www.apollointernational.in

 

[hotradiator]

Is BSPP the same as BSF? I haven't seen a BSF to NSF adapter anywhere.

I think BSPP is Britsh standard pipe parallel thread and you also can have BSPT which is British standard pipe tapered thread

 

[extropic]

Is BSPP the same as BSF?

No, they are different standards. Both are 55° thread form.

Google can be your friend.

BSPP Threads - British Standard PIPE PARALLEL Thread Dimensions & Specifications

torqbolt.com

BSF Threads - British Standard Fine Thread Dimensions & Specifications

torqbolt.com

 

[OTmachine]

Is your BSF thread tapered? That will tell you which it is.