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04MORB-02FP STRAIGHT

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Description & Features

BRENNAN INDUSTRIES INC offers the 04MORB-02FP Straight adapter crafted from high-quality straight steel. This adapter features a male SAE O-ring boss thread type compliant with SAE J514 and a female NPSM thread type adhering to SAE J476 specifications. Key dimensions include an overall length of 1.000 mm and specific thread sizes of 7/16-20 and 1/8-27 mm ensuring a secure and reliable connection.

With an NBR O-ring/seal material this adapter provides excellent resistance and durability suitable for various industrial applications. The series 6405-O adapter is designed with precision to meet rigorous standards facilitating seamless integration into existing systems.

Supplier Part Number: 6405-04-02-O

For California residents please note the PROP-65 WARNING associated with this product.

Specifications

Connection Size 1
1/4 in
Connection Size 2
1/8 in
Connection Type
FNPT, Male SAE ORB
Connection Type 1
Male SAE ORB
Connection Type 2
FNPTF
Dimension Standards
SAE J1926, SAE J476, SAE J514
Dimensions
0.99 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
0.563 in
Material
Steel
Material Construction
12L14/C1045 Steel
Maximum Operating Pressure
6000 psi
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
6405-O Series
Thread 2 Drill Dimensions
0.188 in
Thread B1 Drill Dimensions
0.172 in
Thread Size
1/8-27, 7/16-20

Product Questions & Answers (2)

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Question by: Travis T on Oct 25, 2025, 9:57 PM
trying to hook a male SAE o-ring boss port up to a female NPSM line, is that what this adapter is for?
Answer by: Customer Support on Oct 27, 2025, 6:08 AM
For joining those two thread styles, it matches up a male SAE O-ring boss on one side and a female NPSM on the other. The SAE O-ring boss side is built to SAE J514 and uses an NBR O-ring seal, and the NPSM side follows SAE J476.
Question by: Shawn H on May 13, 2025, 3:08 PM
thread on the male end, is that the O-ring boss style, the kind that seals with a rubber ring against a flat seat?
Answer by: Customer Support on May 15, 2025, 6:34 AM
Yeah, that's exactly right. The male end is a 7/16-20 SAE O-ring boss thread, which uses an NBR o-ring to seal against a machined seat rather than relying on thread engagement alone for the seal. That spec follows SAE J514. The female end is a 1/8-27 NPSM thread per SAE J476, so you've got two different thread types meeting at this adapter, which is the whole point of a fitting like this one.

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