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Brass Field Attachable 338 B Series Air Brake Adapter, 3/8 Male Air Brake To 0.50 Inch Male NPT, Straight

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Description & Features

Designed for air brake line connections in heavy-duty mobile and industrial equipment, the Brass Field Attachable 338 B Series Air Brake Adapter provides a straight 3/8 Male Air Brake to 1/2 inch Male NPT configuration. Constructed from brass, this field attachable fitting allows technicians to assemble connections without specialized crimping equipment, making it practical for service and maintenance environments.

Manufactured by Eaton Aeroquip under catalog number C1MH90, this adapter is part of the 338 B Series product line and carries commodity code 37-332710-00. The straight body orientation suits installations where in-line routing between air brake and NPT-threaded components is required. With an A dimension of 1.37 inches, it fits within compact assembly envelopes common to mobile equipment chassis.

SKU: 1390X6X8

Supplier Part Number (MPN): 1390X6X8

Alternate Part Numbers: C1MH90, MI-08702701, MINO-00925X98654

Specifications

A
1.37
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13556
End Size 1
0.50
End Size 2
0.75
End Type 1
NPTF
End Type 2
UNF
Mandrel Required
No
Pipe Size
0.50
Supplier Part Number
1390X6X8
Thread 1
3/8
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number C1MH90, Alternate Part Number MI-08702701, Alternate Part Number MINO-00015X02989, Alternate Part Number MINO-00925X98654
Product Weight
0.12 lbs

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Product Questions & Answers (1)

Question by: Wayne P on Jul 25, 2025, 8:54 PM
trying to hook an air brake line up to a regular pipe thread port, is this the right adapter?
Answer by: Customer Support on Jul 27, 2025, 8:46 AM
For that kind of hookup, this part is a straight adapter that converts a 3/8 male air brake connection over to a 0.50 inch male NPT connection.