Male Bspt X Female Npt

CH Width
22mm
L Length
37.3mm
Adaptall Material
Steel
Adaptall Shape
Straight
Side 1 Callout
R 3/8 - 19
Side 1 Gender
M
Side 1 Size
3/8"
Side 1 Type
Bspt
Side 2 Callout
3/8 - 18 NPTF
Side 2 Gender
F
Side 2 Size
3/8"
Side 2 Type
Npt
Alternate Part Numbers
Alternate Part Number MI-03551429, Alternate Part Number MINO-03671F37839
Brand
Adaptall America
Brand
Adaptall
Pack Size
1.00
UOM
EA
Supplier Part Number
9042-06-06
Product Weight
0.12 lbs

Product Questions & Answers

got a fitting with R 3/8 - 19 on one side and 3/8 - 18 NPTF on the other, is that what this adapter is for?
Question by: Dale W on Feb 24, 2026, 6:30 PM
For tying those two thread standards together, that is exactly the job of this adapter. One end is an R 3/8 - 19 BSPT male, and the other end is a 3/8 - 18 NPTF female, so it lets you transition between BSPT and NPTF in a straight steel fitting.
Answer by: Customer Support on Feb 26, 2026, 10:18 AM