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Steel Adapter, 1-11-1/2 Male NPT To 1-5/16-12 Male JIC 37 deg Flare, Straight Bulkhead

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Description & Features

Manufactured by Eaton Aeroquip as part of the 2240 Series, this straight bulkhead adapter connects a 1-11½ Male NPT thread to a 1-5/16-12 Male JIC 37° flare, making it well suited for hydraulic, instrumentation, and chemical processing systems that require a secure, leak-resistant transition between NPT and JIC fittings across a bulkhead panel.

The Steel Adapter, 1-11-1/2 Male NPT To 1-5/16-12 Male JIC 37 Deg Flare, Straight Bulkhead carries a catalog reference of C1DV77 and has an overall dimension (A) of 3.11 inches. The 37° flare seat geometry ensures a reliable metal-to-metal seal consistent with SAE JIC standards. Steel construction makes it a dependable choice for demanding industrial fluid power applications.

SKU: 2240-16-16S

Supplier Part Number (MPN): 2240-16-16S

Alternate Part Numbers: C1DV77, MI-00298917, MINO-00015F47348

Specifications

A
3.11
Alternate Part Numbers
Alternate Part Number C1DV77, Alternate Part Number MI-00298917, Alternate Part Number MINO-00015F47348
Application
Other - Hydraulic, instrumentation, and chemical processing systems
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
1
End Type 1
NPTF
End Type 2
SAE 37
Hex Size 2
1.62
Minimum Working Temperature
-65
Supplier Part Number
2240-16-16S
Thread 1
1-11-1/2
Thread 2
1-5/16-12
Thread Sealant
No
Tube I.D. 1
0.84
Tube I.D. 2
0.84
Tube O.D.
1
Tube O.D.
1
Product Weight
0.79 lbs

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Product Questions & Answers (3)

Question by: Harvey J on Mar 29, 2025, 8:45 PM
got a bulkhead pass-through i need to go from 1-11-1/2 male npt to a 1-5/16-12 male jic, is that what this adapter is?
Answer by: Customer Support on Mar 31, 2025, 1:44 PM
For a straight bulkhead connection, it matches those two thread ends: 1-11-1/2 male NPT on one side and 1-5/16-12 male JIC 37 degree flare on the other.
Question by: Glen W on Aug 27, 2025, 11:30 AM
Got a line running 1-inch NPT on one end and need to tie into a JIC 37-degree flare fitting on the other side, this straight bulkhead adapter the right piece for that job?
Answer by: Customer Support on Aug 28, 2025, 1:54 PM
That's exactly what this adapter is built for. One end is 1-11/2 male NPT and the other is 1-5/16-12 male JIC 37-degree flare, so it bridges those two thread types in a straight, bulkhead-mount configuration. It comes from Eaton Aeroquip's 2240 series, which covers NPTF external pipe to SAE 37-degree flare connections. If your line matches those thread sizes and styles on both ends, this is the right piece.
Question by: Cody H on Jun 21, 2025, 7:52 PM
So this is a bulkhead fitting, right? Does that mean I can run it through a panel?
Answer by: Customer Support on Jun 23, 2025, 6:47 AM
That's correct. This Eaton Aeroquip adapter is a straight bulkhead, so you can mount it through a panel to connect lines on either side.