The Danfoss / Eaton Push>Connect Union is an essential component in compressed pneumatic instrumentation circuit lubricant and cooling lines. Crafted from high-quality brass with a nickel plating this fitting ensures durability and resistance to corrosion.
This Brass Push>Connect Metric Tube Fitting 4.00 mm Tube OD Union offers effortless assembly by simply pushing the tubing into the fitting eliminating the need for tools. Disconnecting is equally simpledepress the collet ring with two fingers and withdraw.
Designed for a wide range of temperatures from -40F to 200F the fitting accommodates a pressure range up to 250 psi depending on the tube size. It is also rated at 29.5 inches of mercury vacuum. The Buna-N O-Ring seals provide reliable leak prevention with Viton seals available on request for specialized needs.
Its ease of use reusability and significant time savings in both assembly and disassembly make it a highly efficient choice for industrial applications.
MPN: EAR99
Supplier Part Number: 1162X4M
Loading related products…
Specifications
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
L
30
N
14
Supplier Part Number
1162X4M
Tube O.D.
4
Tube O.D.
4
Alternate Part Numbers
Alternate Part NumberC1HL66, Alternate Part Number MI-02418961, Alternate Part Number MINO-00015X02364, Alternate Part Number MINO-00925J40156
pushing tubing in without any tools -- does this actually hold up or does it loosen over time with vibration and pressure changes?
Answer by: Customer Support on Oct 27, 2025, 6:07 AM
Push-to-connect fittings like this one use a collet ring and Buna-N O-ring seal that grip the tube mechanically once inserted. At 4mm tube OD with a max working pressure of 250 psi, the connection stays secure under normal compressed air and instrumentation line conditions. The brass body with nickel plating also helps resist the kind of corrosion that tends to cause joint failures over time. If you ever need to pull it apart, you just depress the collet ring with two fingers and the tube withdraws clean. Reusability is built into the design, so repeated connect and disconnect cycles won't compromise the seal integrity the way a crushed ferrule fitting would.
Question by: Troy L on Oct 27, 2025, 1:38 PM
got some 4mm metric tube, is this union the push-in kind where you don’t need wrenches?
Answer by: Customer Support on Oct 29, 2025, 6:55 AM
Push the tubing straight into the fitting and it locks in place, no tools needed. To disconnect, press the collet ring in with two fingers and pull the tube back out.
Question by: Ronnie M on Aug 9, 2025, 9:20 PM
Will this fitting work with nylon tubing?
Answer by: Customer Support on Aug 11, 2025, 4:04 PM
This union is designed for use with compressed pneumatic instrumentation circuit lubricant and cooling lines, and it's made from brass with a nickel plating for durability.