LEGACY Coupler Plug Kit: 1/4 in Hose Fitting Size, Sleeve, 1/4"-18 Thread Size
The LEGACY Coupler Plug Kit (SKU 814LM9, MPN A71457B) is a 2-pack of ARO aluminum/steel quick-connect air coupling plug kits with a 1/4" hose fitting size. It features a sleeve locking type, 1/4"-18 NPT thread size…
SKU 3G-OTH-471121
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Product Description
The LEGACY Coupler Plug Kit (SKU 814LM9, MPN A71457B) is a 2-pack of ARO aluminum/steel quick-connect air coupling plug kits with a 1/4" hose fitting size. It features a sleeve locking type, 1/4"-18 NPT thread size, and a female hose fitting gender.
Frequently Asked Questions
What is the LEGACY Coupler Plug Kit used for?
This LEGACY ARO quick-connect air coupling plug kit is used to connect pneumatic tools and hoses in industrial compressed air systems. The 1/4" NPT female fitting and sleeve locking type provide a secure, leak-resistant connection for maintenance, assembly, and manufacturing applications.
What are the specifications of the LEGACY Coupler Plug Kit?
The LEGACY Coupler Plug Kit (MPN A71457B) has a 1/4" hose fitting size, 1/4"-18 NPT thread size, and a female hose fitting gender. It uses a sleeve coupling locking type and is made of aluminum/steel. The kit includes 2 plugs.
Where to buy the LEGACY Coupler Plug Kit worldwide?
3G Electric supplies the LEGACY Coupler Plug Kit (MPN A71457B) to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this ARO-style quick-connect air coupling kit.
How to install the LEGACY Coupler Plug Kit?
To install the LEGACY coupler plug, apply thread sealant to the 1/4"-18 NPT male threads and tighten into the female port of your air tool or hose. Ensure the sleeve locking mechanism engages fully. Test for leaks at operating pressure before use. Follow standard pneumatic fitting safety practices.
Used in
Common applications for LEGACYLEGACY Products
3G Electric supplies LEGACY aro aluminum/steel quick-connect air coupling plug kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.


