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08MP-04MP HEX NIPPLE

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Description & Features

The 08MP-04MP Hex Nipple is a durable component, designed for high-pressure applications, supporting a maximum dynamic pressure of 6,000 Psi.

Manufactured from straight steel, this Brennan Industries part ensures robust performance in industrial environments.

With an overall length of 1.700 mm, it features a male NPTF thread design for both ends. End B1 has a size of 1/2-14 with a drill size of 0.531 mm, while end B2 has a size of 1/4-18 with a drill size of 0.281 mm, both conforming to SAE J476 standards.

The hexagonal shape provides improved wrenching capabilities during installation and maintenance.

California Residents: PROP-65 WARNING

Supplier Part Number: 5404-08-04

Specifications

Brand
BRENNAN
Connection Size 1
1/2 in
Connection Size 2
1/4 in
Connection Type
MNPT
Connection Type 1
Male SAE 30 deg NPTF
Connection Type 2
Male SAE 30 deg NPTF
Dimension Standards
SAE J476, SAE J514
Dimensions
1.7 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Nipple
Hex Size
7/8 in
Material
Steel
Material Construction
12L14/C1045 Steel
Maximum Operating Pressure
6000 psi
Series
5404 Series
Thread 2 Drill Dimensions
0.281 in
Thread B1 Drill Dimensions
0.531 in
Thread Size
1/2-14 x 1/4-18

Product Questions & Answers (3)

Question by: Kirk C on Sep 21, 2025, 12:17 PM
got a 1/2-14 nptf port and need to step down to 1/4-18, is that what this hex nipple does?
Answer by: Customer Support on Sep 22, 2025, 12:21 PM
For stepping between sizes, this part is a straight steel hex nipple with male NPTF threads on both ends. One side is 1/2-14 (B1) and the other is 1/4-18 (B2), both to SAE J476, so it’s meant to connect those two female NPTF ports.
Question by: Marvin F on Jan 3, 2026, 5:44 PM
does this thing go between a 1/2 inch line and a 1/4 inch line, or am I reading the thread sizes wrong?
Answer by: Customer Support on Jan 5, 2026, 6:26 AM
You're reading it right. One end is 1/2-14 NPTF and the other is 1/4-18 NPTF, so it steps down between those two sizes. Both ends are male threads, so you'd be threading this into female NPTF ports on each side. It's a reducer nipple, not a coupler, so make sure your fittings on both ends are female before you order.
Question by: Marvin M on May 29, 2025, 3:54 PM
Will this nipple work for hooking up a quarter-inch line to a half-inch port?
Answer by: Customer Support on May 31, 2025, 12:28 PM
Designed to adapt between different NPTF thread sizes, this hex nipple features a 1/4-18 thread on one end and a 1/2-14 thread on the other.

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