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12MP-04MP HEX NIPPLE

Description & Features

Designed for reducing connections between different pipe thread sizes, the 12MP-04MP Hex Nipple connects a 3/4-14 Male Nptf thread on one end to a 1/4-18 Male Nptf thread on the other. Both ends conform to SAE J476, making this fitting well-suited for hydraulic and industrial fluid systems where a secure, leak-resistant male-to-male connection is required between mismatched thread sizes.

Constructed from straight steel, this Brennan Industries Series 5404 fitting is rated for dynamic pressures up to 5,500 PSI. The hex body allows for standard wrench engagement during installation. With an overall length of 1.770 inches, it is a compact reducer nipple suited for tight or space-constrained assemblies.

SKU: 5404-12-04

Supplier Part Number (MPN): 5404-12-04

Alternate Part Numbers: A2083-12-4S, BR-5404-12-04

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 5404-12-04	Product Weight 0.00 lbs

Product Questions & Answers (1)

Question by: Ralph H on Oct 29, 2025, 9:24 PM

got a 3/4-14 male nptf port on one side and need to step down to 1/4-18 male nptf on the other. is this the right reducer nipple?

Answer by: Customer Support on Oct 31, 2025, 4:51 PM

For reducing between those two male pipe thread sizes, this hex nipple is a 3/4-14 Male NPTF on one end and a 1/4-18 Male NPTF on the other, with both ends conforming to SAE J476.