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Steel Reusable Air Brake Fitting, 1/4-18 Male NPT, -06 Hose Size, Straight

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Description & Features

Designed for air brake hose assemblies, the Steel Reusable Air Brake Fitting, 1/4-18 Male NPT, -06 Hose Size, Straight is a reusable-style hose end fitting from Eaton Aeroquip's 479301 series. Constructed in steel, it is built to withstand the demands of air brake system connections in commercial and industrial vehicle applications.

The straight configuration features a 1/4-18 male NPT thread and a -06 hose end, with an overall dimension of 1.14 inches. As a reusable fitting, it can be assembled and disassembled without specialized crimping equipment, making it practical for field service and maintenance environments. Catalog reference C1BR37 applies to this configuration.

SKU: 479301-4-6S

Supplier Part Number (MPN): 479301-4-6S

Alternate Part Numbers: C1BR37, MI-00331542, MINO-00015F71883

Specifications

D
1.14
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Size 1
0.25
End Type 1
NPTF
End Type 2
Line/Hose/Tube
Hex Size 2
0.88
Hose Size
-06
Mandrel Required
No
Supplier Part Number
479301-4-6S
Thread 1
1/4-18
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number C1BR37, Alternate Part Number MI-00331542, Alternate Part Number MINO-00015F71883
Product Weight
0.05 lbs

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Product Questions & Answers (1)

Question by: Jerry J on Jan 10, 2026, 5:27 PM
Does this fitting work for air brake lines, or is it meant for something else entirely?
Answer by: Customer Support on Jan 12, 2026, 7:21 AM
Air brake applications are exactly what the 479301 series is built around. The fitting connects to a 1/4-18 male NPT port on one end and accepts a -06 hose on the other, running straight through with no angle or elbow. The reusable design means you can pull it off the hose and put it back on without tossing the fitting every time, which adds up over the life of a rig or trailer.