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04MFS-04MBSPP STRAIGHT

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Description & Features

This straight steel fitting, designated as 04MFS-04MBSPP STRAIGHT, is part of the FS7002-BS series from Brennan Industries. Constructed from straight steel, it features a male face seal O-ring with a 9/16-18 thread size and SAE J1453 thread specification for B1 connections.

The B2 connection is a male British Standard Pipe Parallel (BSPP) with a 60-degree seat and a 1/4-19 thread size. It also incorporates a 9900-04 Brennan assembled BSPP bonded seal and a NBR O-ring seal material.

SKU: FS7002-04-04-BS

Supplier Part Number (MPN): FS7002-04-04-BS

Specifications

Additional Information
Bonded Seal
Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Type
Male BSP, Male ORFS
Connection Type 1
Male ORFS
Connection Type 2
Male BSPP
Dimension Standards
SAE J1453
Fitting Type
Adapter
Hex Size
19 mm
Material
Steel
Material Construction
Steel
Seal Material
NBR
Series
FS7002 Series
Thread Size
9/16-18 x 1/4-19

Product Questions & Answers (1)

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Question by: Wayne W on Feb 16, 2026, 4:44 PM
What size is the B1 thread on this fitting? Just want to make sure it'll work with my setup.
Answer by: Customer Support on Feb 18, 2026, 10:43 AM
It's got a 9/16-18 thread size for the B1 connection. That's according to the SAE J1453 spec.

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