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Small brass quick-connect female fitting with 1/4-18 thread and 1/4 inch tube size

Eaton

Eaton 1866X4X4 Female Connector 1/4-18 1/4 In Tube Brass 150 PSI

SKU CH-8RRS-JVPDD

Brass quick-connect fitting joins 1/4 inch tube to 1/4-18 pipe at 150 PSI from -40 to 200 F with ethylene propylene gasket meeting DOT FMVSS 571.106 and SAE J1144

  • Product typeAccessories & Compressors
  • Brass construction resists corrosion for long service life
  • Quick-connect design enables fast, tool-free installation
  • Rated to 150 PSI for reliable pneumatic performance
  • Operates from -40 to 200 °F across extreme environments
  • Meets DOT FMVSS 571.106 and SAE J1144 standards

Eaton 1866X4X4 Female Connector

The Eaton 1866X4X4 is a brass female connector built for push-connect and air-brake circuits. It joins 1/4 inch tube to a 1/4-18 pipe thread at up to 150 PSI and meets DOT FMVSS 571.106 plus SAE J1144 standards.

Installers needing a DOT-compliant push-connect

Suits technicians assembling air-brake or pneumatic lines that require the listed pressure rating and temperature span of -40 to 200 F. Not for systems exceeding 150 PSI, for tube sizes other than 1/4 inch, or for applications that demand a different thread standard or seal material.

1/4-18 thread with 1/4 inch tube quick-connect

The single specification that decides fit is the 1/4-18 pipe thread paired with a 1/4 inch tube quick-connect end. Match both the thread and the tube size to your line; if either differs this connector will not seal.

How it compares

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Price $12.99
Cheaper than about 78% of the 874 comparable items (median $25.99).

Specifications

Product
Brand nameEATON WEATHERHEAD
Product typeAccessories & Compressors

Questions about this item

Does the Eaton 1866X4X4 female connector come with any extra seals or tubing, or do I need to buy those separately?

The connector is supplied as a single brass fitting with an ethylene propylene rubber gasket already installed. No additional seals, tubing or tools are included in the package.

The listing shows a 1/4-18 thread and 1/4 in tube size — are there other thread or tube options for this model?

This specific part number is manufactured only with a 1/4-18 pipe thread and a 1/4 in tube connection. Other sizes carry different part numbers.

What does the 150 PSI rating mean when the connector is installed in an air-brake system?

It indicates the maximum working pressure the brass body and quick-connect seal are designed to hold continuously in DOT FMVSS 571.106 and SAE J1144 compliant air-brake circuits.

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