Skip to the beginning of the images gallery

Steel Adapter, Male G1-1/4-11 BSPP to Female 1-1/4-11.5 NPT, Straight

Description & Features

This high-quality steel adapter by Adaptall America transitions between Male G1-1/4-11 BSPP and Female 1-1/4-11.5 NPT threads with precision. Engineered for reliability in demanding environments it ensures secure and efficient connections within industrial applications.

Crafted from durable steel this straight adapter provides robustness and long-lasting performance. The absence of adjustable components simplifies installation making it an ideal choice for static setups that require dependable connections. Adaptall Americas commitment to quality assures optimal compatibility and performance.

Essential in various industries this adapter is designed to facilitate smooth and consistent flow between differing thread types thereby enhancing the versatility of your equipment. Its straightforward configuration minimizes potential points of failure contributing to overall system integrity.

Supplier Part Number: 9035S-20-20K

Specifications

Brand adapt-all	Connection Size 1 1-1/4 in	Connection Size 2 1-1/4 in	Connection Type FNPT, Male BSP	Connection Type 1 Male BSPP	Connection Type 2 FNPT	Dimensions 55 mm L	Fitting Type Adapter	Material Steel	Material Construction Carbon Steel	Series 9035S Series	Thread Size 1-1/4-11-1/2 x 1-1/4-11

Product Questions & Answers (1)

Question by: Hugh G on Mar 9, 2026, 7:48 PM

got a piece of equipment running BSPP fittings and need to tie it into a NPT line, this adapter do that job straight up?

Answer by: Customer Support on Mar 11, 2026, 6:07 PM

That's what it's built for. The male end is G1-1/4-11 BSPP and the female end accepts 1-1/4-11.5 NPT, so it bridges those two thread standards in one solid piece. Steel construction means it holds up in working industrial conditions without a lot of fuss.