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Straight 5400 Coupling Thread

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Description & Features

The Straight 5400 Coupling Thread from Danfoss Power Solutions is engineered to be dependable and highly durable. It is suitable for a diverse range of applications ensuring long-term performance and reliability in demanding environments.

This coupling thread features a male UNEF end with a 0.875 size and is designed to work seamlessly with hoses or tubes making it a versatile choice for industrial applications. The robust zinc-coated carbon steel construction ensures protection against corrosion enhancing the longevity of the product.

With its efficient design the coupling thread helps reduce assembly times contributing to increased productivity. The product does not require additional components like batteries ratchets or cases simplifying the usage and maintenance process.

Supplier Part Number: FJ3970-0808S

Specifications

Brand
Aeroquip® by Danfoss
a Dimensions
3.19 in
Compatible Hose ID
1/2 in
Connection Size 1
1/2 in
Connection Size 2
1/2 in
Connection Type
Hose, Threaded
Connection Type 1
Hose
Connection Type 2
Threaded
Construction Style
Reusable
Cut-Off Factor
1.65 in
Dimensions
3.19 in L x 1 in W x 1 in H
End Gender 1
Male
End Size 1
7/8 in
Finish
Zinc-Plated
Fitting Type
Hose Fitting
For Use With
E-Z Clip System A/C Refrigeration GH134 Series Hoses
Hex Size
0.984 in
Hose Dash Size
08
Inside Diameter
0.31 in
Material
Steel
Material Construction
Carbon Steel
nmfc
50
Seal Material
HNBR
Series
FJ3970 Series
Thread Sealant
Without Thread Sealant
Thread Size
7/8-20

Product Questions & Answers (2)

Question by: Wade H on Apr 7, 2026, 6:36 PM
Reckon this'll work with just any hose, or does it need somethin' special?
Answer by: Customer Support on Apr 9, 2026, 7:19 AM
This coupling thread is designed for seamless integration with hoses or tubes, making it a versatile choice for various industrial applications.
Question by: Chad H on Aug 23, 2025, 9:53 AM
What's this fitting made out of, and is it gonna hold up to some rust over time?
Answer by: Customer Support on Aug 24, 2025, 12:10 PM
Carbon steel with a zinc coating. That coating is what keeps corrosion from becoming a problem down the road. It's a solid choice for environments where moisture or general wear are a concern, and the construction is built to last through regular industrial use.

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