Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

APPROVED VENDOR Metal Pipe Straight: Union, 3/8 in x 3/8 in, Class 150, Brass - Low-Pressure Threaded Pipe Fittings
APPROVED VENDORLow-Pressure Threaded Pipe Fittings

APPROVED VENDOR Metal Pipe Straight: Union, 3/8 in x 3/8 in, Class 150, Brass

The APPROVED VENDOR Metal Pipe Straight: Union is a low-pressure threaded pipe fitting, specifically a 3/8 in x 3/8 in, Class 150, brass union (MPN 6AYY4). This fitting is designed for joining two pipes of the same…

SKU 3G-OTH-461265

Brand
APPROVED VENDOR
Item
Metal Pipe Straight: Union, 3/8 in x 3/8 in, Class 150, Brass
Category
Low-Pressure Threaded Pipe Fittings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
6AYY4
Type
3/8 in x 3/8 in, Class 150, Brass, Union
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Metal Pipe Straight: Union is a low-pressure threaded pipe fitting, specifically a 3/8 in x 3/8 in, Class 150, brass union (MPN 6AYY4). This fitting is designed for joining two pipes of the same size in a straight line, with a Class 150 pressure rating and brass construction.

Frequently Asked Questions

What is the APPROVED VENDOR 6AYY4 brass union used for?

The APPROVED VENDOR 6AYY4 is a Class 150 brass union used to join two 3/8-inch pipes in a straight line in low-pressure threaded piping systems. It is commonly applied in plumbing, HVAC, and industrial fluid-handling circuits where a reliable, leak-resistant connection is needed.

What are the specifications of the APPROVED VENDOR 6AYY4 union?

The APPROVED VENDOR 6AYY4 is a metal pipe straight union with 3/8 in x 3/8 in connections, Class 150 pressure rating, and brass construction. It is a low-pressure threaded pipe fitting designed for straight-line pipe joining. The manufacturer part number is 6AYY4.

Where to buy the APPROVED VENDOR 6AYY4 brass union worldwide?

3G Electric supplies the APPROVED VENDOR 6AYY4 brass union to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery for this Class 150 pipe fitting. Contact us to order for your region.

How to install a brass union like the APPROVED VENDOR 6AYY4?

To install the APPROVED VENDOR 6AYY4 brass union, ensure pipe threads are clean and apply thread sealant. Hand-tighten the union nut, then use wrenches on the hex flats to snug the connection without over-torquing. Always follow standard piping practices for Class 150 brass fittings.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR low-pressure threaded pipe fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from APPROVED VENDOR

View all APPROVED VENDOR parts
APPROVED VENDOR Plug: Square Drive Cored Plug, 1 1/4 in, BSPT Threaded, Class 125, C89833 Brass (MPN ZUSA-PF-10568). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 125 psi @ 72° F.
APPROVED VENDOR
APPROVED VENDOR Plug: Square Drive Cored Plug, 1 1/4 in, BSPT Threaded, Class 125, C89833 Brass (MPN ZUSA-PF-10568). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 125 psi @ 72° F.
APPROVED VENDOR Cap: Cap, 3/8 in, BSPT Threaded, Class 125, C89833 Brass, 125 psi @ 72° F, 5/8 in Lg (MPN ZUSA-PF-10549). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 125 psi @ 72° F.
APPROVED VENDOR
APPROVED VENDOR Cap: Cap, 3/8 in, BSPT Threaded, Class 125, C89833 Brass, 125 psi @ 72° F, 5/8 in Lg (MPN ZUSA-PF-10549). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 125 psi @ 72° F.
APPROVED VENDOR Plug: Plug, 2 in, NPT Threaded, Brass, 200 psi (MPN 22UL68). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 200 psi.
APPROVED VENDOR
APPROVED VENDOR Plug: Plug, 2 in, NPT Threaded, Brass, 200 psi (MPN 22UL68). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 200 psi.
APPROVED VENDOR Metal Pipe Tee: Tee, 1/2 in x 1/2 in x 1/4 in, Brass, 200 psi, Reducer (MPN 2CFG8). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 200 psi.
APPROVED VENDOR
APPROVED VENDOR Metal Pipe Tee: Tee, 1/2 in x 1/2 in x 1/4 in, Brass, 200 psi, Reducer (MPN 2CFG8). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 200 psi.
APPROVED VENDOR Metal Pipe Tee: Tee, 3/8 in x 3/8 in x 3/8 in, Class 150, Brass, 10 PK (MPN 6AYW2). Key specifications — Brand: APPROVED VENDOR.
APPROVED VENDOR
APPROVED VENDOR Metal Pipe Tee: Tee, 3/8 in x 3/8 in x 3/8 in, Class 150, Brass, 10 PK (MPN 6AYW2). Key specifications — Brand: APPROVED VENDOR.
APPROVED VENDOR Cap: Cap, 1/4 in, NPT Threaded, Brass, 200 psi (MPN 6RCX9). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 200 psi.
APPROVED VENDOR
APPROVED VENDOR Cap: Cap, 1/4 in, NPT Threaded, Brass, 200 psi (MPN 6RCX9). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 200 psi.
APPROVED VENDOR Metal Pipe Straight: Straight, 1 1/2 in x 1 1/4 in, Brass, 200 psi, Bushing (MPN 1VGA3). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 200 psi.
APPROVED VENDOR
APPROVED VENDOR Metal Pipe Straight: Straight, 1 1/2 in x 1 1/4 in, Brass, 200 psi, Bushing (MPN 1VGA3). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 200 psi.
APPROVED VENDOR Plug: Plug, 1/4 in, NPT Threaded, Brass, 200 psi (MPN 6RCZ4). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 200 psi.
APPROVED VENDOR
APPROVED VENDOR Plug: Plug, 1/4 in, NPT Threaded, Brass, 200 psi (MPN 6RCZ4). Key specifications — Brand: APPROVED VENDOR; Maximum Operating Pressure: 200 psi.