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Breco B-B4PS4-S, 1/2" Industrial Plug x 1/2" Push-On Hose Stem, 5 Series, Steel

Breco B-4CS3-S, 1/2" Industrial Coupler x 3/8" Hose ID, 5 Series, Sleeve Guard, Steel

by Breco
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$ 48.09
$ 48.09 - $ 48.09
$ 48.09
$ 38.49
$ 38.49 - $ 38.49
$ 38.49

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Breco B-4CS3-S is a Steel 1/2" industrial coupler from the Breco 5 Series — a high-flow quick coupler that interchanges with any 1/2"-body industrial-interchange half (ISO 6150-B / ANSI T3.20.14; FM 5 Series complies with A-A-59439). Built in the USA for demanding shop air, tools, and production lines.

Specifications

  • Brand: Breco
  • Series: 5
  • Part Number: B-4CS3-S
  • Interchange: 1/2" Industrial
  • Body: 1/2" Coupler
  • Thread: 3/8" Hose ID
  • Valve Type: One-Way Shut-Off
  • Material: Steel
  • Operation: Manual sleeve with Sleeve Guard (rigid flange resists accidental sleeve retraction)
  • Working Pressure: 300 PSIG; vacuum to 27" Hg
  • Temperature Range: -40°F to +250°F
  • Seal: Buna-N (Nitrile)
  • Quantity: 1pc
  • Origin: Made in USA

Why this coupler

  • Sleeve Guard — which means a rigid flange shields the sleeve from accidental retraction when the hose is dragged.
  • One-Way Shut-Off — which means the socket seals the supply line the instant the plug is removed, holding pressure and preventing blow-down.

Snap it on and the connection just holds — full 1/2" flow, no drips, no hiss. Built to take daily shop abuse and keep sealing leak-free, connection after connection.

Frequently asked questions

What does this connect to?
It mates with any 1/2"-body industrial-interchange plug (ISO 6150-B / ANSI T3.20.14), the most common high-flow air-coupler standard in North America.

What pressure and temperature is it rated for?
300 PSIG working pressure (vacuum to 27" Hg connected), with a Buna-N (Nitrile) seal rated -40°F to +250°F.

What is a Sleeve Guard?
A rigid flange at the nose of the socket that protects the sleeve from being knocked open when the hose is dragged.

Ideal for high-flow shop air lines, pneumatic tools, and production equipment. Pair this coupler with a matching 1/2" 5 Series plug for a complete, leak-free connection.

Why buy from hpcouplers: Breco quality (an Ideal Tridon Group brand), backed by responsive US-based support, accurate specs, and fast shipping. Quick-coupling is what we do.