PARKER Barbed Fitting Adapter: 1/4 in ID x 3/8 in ID Size, Barbed x MNPT, Brass
The PARKER Barbed Fitting Adapter (MPN 28-8-4) is a standard brass barbed tube fitting with a 1/4 in ID x 3/8 in ID size, featuring a Barbed x MNPT connection type and rigid construction. This adapter is part of our…
SKU 3G-OTH-476380
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Product Description
The PARKER Barbed Fitting Adapter (MPN 28-8-4) is a standard brass barbed tube fitting with a 1/4 in ID x 3/8 in ID size, featuring a Barbed x MNPT connection type and rigid construction. This adapter is part of our broad industrial supply across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor for brands like PARKER, ensuring you get the right solution for your application.
Frequently Asked Questions
What is the PARKER Barbed Fitting Adapter 28-8-4 used for?
The PARKER Barbed Fitting Adapter 28-8-4 connects a 1/4 in ID hose to a 3/8 in ID hose or male NPT threaded port. It is used in pneumatic, hydraulic, and fluid transfer systems across industrial departments like machining, material handling, and instrumentation.
What are the specifications of the PARKER 28-8-4 barbed fitting?
The PARKER 28-8-4 is a standard brass barbed tube fitting with a 1/4 in ID x 3/8 in ID size, Barbed x MNPT connection type, and rigid construction. The manufacturer part number is 28-8-4. It is designed for reliable sealing in low-pressure fluid and air applications.
Where to buy the PARKER 28-8-4 barbed fitting worldwide?
3G Electric supplies the PARKER 28-8-4 barbed fitting worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this genuine PARKER adapter.
How to install the PARKER 28-8-4 barbed fitting adapter?
To install the PARKER 28-8-4, push the hose fully onto the barbed end and secure with a hose clamp if needed. Apply thread sealant to the male NPT threads and tighten into the mating port. Avoid over-tightening to prevent brass cracking. Always follow system pressure ratings.
Used in
Common applications for PARKERPARKER Products
3G Electric supplies PARKER standard brass barbed tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









