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06 PIPE CAP

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Description & Features

This hex pipe cap from Brennan Industries Inc is engineered to deliver reliable performance in a variety of industrial applications. Constructed from durable straight steel it meets the specifications of SAE J476.

With an overall length of 0.810 mm and a female NPTF thread type this cap is designed for 3/8-18 thread sizes making it suitable for sealing and protecting threaded connections efficiently. This product is part of the 5406-C series ensuring consistency and compatibility across similar fittings.

Prop 65 Warning: California residents should be aware of potential exposure to chemicals known to cause cancer birth defects or other reproductive harm.

Supplier Part Number: 5406-C-06

Specifications

Brand
BRENNAN
Connection Size 1
3/8 in
Connection Type
FNPT
Connection Type 1
Female NPTF
Dimension Standards
SAE J476
Dimensions
0.81 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Cap
Hex Size
0.81 in
Material
Steel
Material Construction
AISI 12L14/1045 Steel
Maximum Operating Pressure
6000 psi
Series
5406-C Series
Thread B1 Drill Dimensions
0.406 in
Thread Size
3/8-18

Product Questions & Answers (1)

Question by: Rusty B on Jan 7, 2026, 1:43 PM
What size pipe does this cap fit? I wanna make sure its the right one before I order it.
Answer by: Customer Support on Jan 8, 2026, 3:25 PM
It's designed for a 3/8-18 thread size, which should match up with your pipe if it meets that specification.

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