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Steel Adapter, 2-11-1/2 Male NPT To 1-11-1/2 Female NPT, Bushing

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Description & Features

Manufactured in steel and sourced from Eaton Aeroquip's 2081 Series, this Steel Adapter, 2-11-1/2 Male NPT To 1-11-1/2 Female NPT, Bushing provides a reliable threaded reduction between a 2" male NPT connection and a 1" female NPT connection. The bushing configuration makes it well-suited for use in grease systems, instrumentation lines, and most hydraulic systems where a compact, in-line pipe thread reduction is required.

With an A dimension of 1.75 inches, this Eaton Aeroquip adapter is a direct-fit solution for standard NPT thread assemblies. Its all-steel construction offers durability across a broad range of fluid compatibility applications, consistent with Eaton Aeroquip's published fluid compatibility guidelines for this product family.

SKU: 2081-32-16S

Supplier Part Number (MPN): 2081-32-16S

Alternate Part Numbers: C1BA45, MI-00325874, MINO-00015F67654

Specifications

A
1.75
Alternate Part Numbers
Alternate Part Number C1BA45, Alternate Part Number MI-00325874, Alternate Part Number MINO-00015F67654
Application
Other - Grease, instrumentation, and most hydraulic systems
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13555
End Size 1
2
End Size 2
1
End Type 1
NPTF
End Type 2
NPTF
Minimum Working Temperature
-65
Supplier Part Number
2081-32-16S
Thread 1
2-11-1/2
Thread 2
1-11-1/2
Thread Sealant
No
Product Weight
1.22 lbs

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Product Questions & Answers (3)

Question by: Harold B on Jun 14, 2025, 9:53 AM
trying to step a 2 inch npt port down, is this the bushing that goes from 2-11-1/2 male npt to 1-11-1/2 female npt
Answer by: Customer Support on Jun 16, 2025, 9:12 AM
Steps a 2-11-1/2 male NPT connection down to a 1-11-1/2 female NPT port. It’s an Eaton Aeroquip 2081 Series steel reducer bushing made for external pipe thread to internal pipe thread.
Question by: Dustin B on Mar 24, 2026, 3:24 PM
Got a 2-inch male NPT line that needs to step down to a 1-inch female NPT port. this the right bushing for that?
Answer by: Customer Support on Mar 26, 2026, 7:34 AM
That's what this one does. The male end threads into your 2-11/2 NPT connection and the female side accepts a 1-11/2 NPT fitting, so you're reducing from a 2-inch down to a 1-inch in a single piece. It's a bushing-style adapter, so it threads right in without needing a separate coupling in between.
Question by: Dustin M on Aug 14, 2025, 10:43 AM
Hey, will this here adapter work for hydraulic systems in general?
Answer by: Customer Support on Aug 16, 2025, 9:04 AM
It does indeed. This Eaton Aeroquip adapter is suitable for grease, instrumentation, and most hydraulic systems.