RAPIDAIR M8021 Brass Compression Tube Fitting Coupling
The RAPIDAIR Compression Fitting Coupling (MPN M8021) is a brass compression tube fitting for compressed air systems, configured as Compression x Compression with a 5/8 in OD fitting size. 3G Electric interprets your…
SKU 3G-OTH-477627
Also listed as: M 8021 · M-8021
Local availability & support
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
The RAPIDAIR Compression Fitting Coupling (MPN M8021) is a brass compression tube fitting for compressed air systems, configured as Compression x Compression with a 5/8 in OD fitting size. 3G Electric interprets your demand for this OEM part, sources it through our global supply network, and supports your procurement with specialist expertise across 14 industrial departments — including pneumatics — backed by deep knowledge in combustion, pumps and controls.
Frequently Asked Questions
What is the RAPIDAIR M8021 compression fitting coupling used for?
The RAPIDAIR M8021 is a brass compression fitting coupling used to join two 5/8 in OD tubes in compressed air systems. It provides a leak-tight, reusable connection without soldering or flaring, making it ideal for pneumatic lines in industrial automation, manufacturing, and maintenance applications.
What are the specifications of the RAPIDAIR M8021?
The RAPIDAIR M8021 is a Compression x Compression coupling with a 5/8 in OD fitting size on both ends. It is made of brass for corrosion resistance and durability in compressed air systems. The manufacturer part number is M8021, and the brand is RAPIDAIR.
Where to buy the RAPIDAIR M8021 worldwide?
3G Electric supplies the RAPIDAIR M8021 compression fitting coupling worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider with expertise across 14 departments including pneumatics, we source this OEM part through our supply network to meet your demand.
How to install a RAPIDAIR compression fitting coupling?
To install the RAPIDAIR M8021, cut the tube square, deburr the end, and slide the nut and ferrule onto the tube. Insert the tube fully into the fitting body, then tighten the nut by hand until snug, followed by a wrench turn per manufacturer guidelines. Avoid over-tightening to prevent damage.
Used in
Common applications for RAPIDAIRRAPIDAIR Products
3G Electric supplies RAPIDAIR compressed air system brass compression tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.