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Steel Adapter, 1-11-1/2 Male NPT Branch To 1-11-1/2 Female NPT Run, Tee

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Description & Features

Zinc-plated steel construction makes this Eaton Aeroquip 2091 Series tee adapter well suited for grease, instrumentation, and most hydraulic system connections. The Steel Adapter, 1-11-1/2 Male NPT Branch To 1-11-1/2 Female NPT Run, Tee provides a 1-11-1/2 NPT male branch connection alongside a 1-11-1/2 NPT female run, enabling reliable branch-off configurations in-line. With an A dimension of 1.97 and a B dimension of 1.62, it fits standard tee configurations without modification.

NPTF thread compatibility on both the external and internal pipe connections supports leak-resistant makeup in demanding industrial environments. The zinc plating provides corrosion resistance for extended service life in typical hydraulic and instrumentation installations. Catalog reference C1BB42.

SKU: 2091-16-16S

Supplier Part Number (MPN): 2091-16-16S

Alternate Part Numbers: C1BB42

Specifications

A
1.97
Alternate Part Numbers
Alternate Part Number C1BB42
Application
Other - Grease, instrumentation, and most hydraulic systems
B
1.62
Drop Dimension
1.97
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13553
End Gender 2
13555
End Gender 3
13557
End Size 1
1
End Size 2
1
End Size 3
1
End Type 1
NPTF
End Type 2
NPTF
End Type 3
NPTF
Minimum Working Temperature
-65
Supplier Part Number
2091-16-16S
Thread 1
1-11-1/2
Thread 2
1-11-1/2
Thread Sealant
No
Product Weight
1.23 lbs

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Product Questions & Answers (1)

Question by: Shawn R on Mar 15, 2026, 2:20 PM
trying to tee off a 1-11-1/2 npt line, is this the one where the run is female and the branch is male?
Answer by: Customer Support on Mar 16, 2026, 3:51 PM
Function-wise, it gives you a tee with a 1-11-1/2 female NPT run and a 1-11-1/2 male NPT branch, all in the Eaton Aeroquip 2091 series using NPTF external and NPTF internal pipe threads.