1/8" bspt thread size

[eagle597]

1969 Series IIA 2.25 petrol marine blue Is the oil pressure switch and the oil pressure sender to gauge both
1/8" BSPT thread size? I have an adapter for spin on oil filter, banjo fitting and an thread adapter for fitting both units on the oil filter adapter. I want to change to another oil pressure gauge that uses a different sender with a male 1/8" NPTF thread. So do I need an adapter from female NPTF to male BSPT 1/8" ???

[jac04]

I believe they are BSPT into the housing, but I think the original line to the gauge has BSPP female threads on both ends. Hopefully someone who knows for sure will chime in.

For adapters, check out:
http://www.metricmcc.com (http://www.metricmcc.com/catalog/Ch8/8-850.pdf)