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Male Bspp X Female O-Ring Boss

Description & Features

This straight steel adapter features a male 1/4" BSPP Side 1 and a female 3/8" Orb-SAE Side 2 connection.

This Adaptall fitting, also called a Male BSPP X Female O-Ring Boss, has a Side 1 callout of G 1/4 - 19 and a Side 2 callout of 9/16 - 18 UNF. It has a 24mm width across the flats and an overall length of 32.9mm.

SKU: 9036-04-06

Supplier Part Number (MPN): 9036-04-06

Specifications

Connection Size 1 1/4 in	Connection Size 2 3/8 in	Connection Type Female SAE ORB, Male BSP	Connection Type 1 Male BSPP	Connection Type 2 Female SAE ORB	Dimension Standards BS 5200, ISO 1179, ISO 11926, ISO 8434-6, SAE J1926	Dimensions 34 mm L	Finish Zinc-Plated	Fitting Type Adapter	Material Steel	Material Construction Carbon Steel	Series 9036 Series	Thread Size 1/4-19 x 3/8-19

Product Questions & Answers (1)

Question by: Lyle T on Mar 16, 2026, 7:33 AM

trying to swap a fitting on a little hydraulic setup, is this one the straight adapter that goes from G 1/4 - 19 to 9/16 - 18 UNF?

Answer by: Customer Support on Mar 17, 2026, 10:37 AM

You are looking at a straight steel adapter with a male BSPP on Side 1 and a female O-Ring Boss (ORB-SAE) on Side 2. Side 1 is G 1/4 - 19 male, and Side 2 is 9/16 - 18 UNF female, which is the thread callout used for 3/8 ORB.

Male Bspp X Female O-Ring Boss

Description & Features

Specifications

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Product Questions & Answers (1)