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#20 MORB X #24 FP (RIGID)

Description & Features

This straight steel fitting features a #20 Male SAE O-Ring Boss (MORB) thread on one end and a #24 Female NPSM thread on the other.

The #20 MORB X #24 FP (RIGID) fitting conforms to SAE J514 standards for the MORB connection and SAE J476 for the NPSM connection. It has an overall length of 2.300 mm. The O-ring seal is made of NBR.

SKU: 6405-20-24-O

Supplier Part Number (MPN): 6405-20-24-O

Alternate Part Numbers: 2216-20-24S, 6405-20-24, A2216-24-20S, C1BX61

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 6405-20-24-O	Product Weight 1.50 lbs

Product Questions & Answers (1)

Question by: Jimmy W on Sep 29, 2025, 8:14 PM

thread on the female end is NPSM, not NPT, does that matter for how it seals up?

Answer by: Customer Support on Sep 30, 2025, 8:56 PM

NPSM is a straight mechanical thread, so it relies on a mating fitting or surface to create the seal rather than thread taper the way NPT does. NPT threads are tapered and generate a seal through thread interference, which is a different sealing method entirely. If your port or hose end is NPT, this fitting won't give you a proper seal. Make sure the female side of your connection is also NPSM before ordering.