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Straight carbon-steel hydraulic adapter with male NPTF threads on both ends

Eaton

Eaton Aeroquip 2021-24-24S hydraulic adapter

SKU CH-HM9S-RN868

Connects two 1-1/2 inch NPTF male hydraulic lines in a straight, rigid carbon-steel fitting rated to 2,000 psi with a 2.68 inch overall length

  • Connects male NPTF to male JIC 37° flare
  • Carbon steel construction handles 2,000 psi working pressure
  • Straight rigid shape simplifies inline hydraulic routing
  • 68 in overall length fits tight machine envelopes
  • Compatible with 1 1/2 in pipe and hose sizes

Hydraulic Adapter for 1-1/2 Inch NPTF Systems

This Eaton Aeroquip straight adapter joins two male NPTF threads sized at 1-1/2 inches. It is built for hydraulic circuits rated to 2,000 psi. The carbon steel body uses 12L14 and 12L15 grades. The fitting suits installers who need a rigid, non-crimpable connection between compatible pipe sizes.

Pressure and Thread Limits

The 2,000 psi rating sets the practical ceiling for this adapter. Both ends share the same 1-1/2 inch NPTF thread specification. There is no O-ring included, so sealing relies on thread engagement and compound. The 37-degree JIC angle is noted in the material standard but the connection type remains NPTF.

Carbon Steel Build and Straight Mounting

The carbon steel construction resists deformation under rated pressure. A straight, rigid shape keeps the flow path direct and simplifies alignment during assembly. At 2.68 inches overall length, the adapter fits tight runs without adding leverage stress. Male-to-male ends mean both ports must accept external threads.

How it compares

Measured against everything we stock in Hydraulic Fluids, Parts & Sensors, at today’s prices. Recalculated every night.

Price $21.99
Cheaper than about 68% of the 128 comparable items (median $37.49).

Specifications

Product
Brand nameEATON AEROQUIP

Questions about this item

Which thread size should I pick for a 1-1/2 inch NPTF hydraulic line?

The adapter uses a 1-1/2-11-1/2 thread on the NPTF side and a 1-7/8-12 thread on the JIC 37 degree side, both sized for 1-1/2 inch pipe.

What does the 2000 psi rating mean when the fitting is installed?

It indicates the maximum working pressure the carbon steel body can handle in a hydraulic circuit without leakage or deformation.

How do the NPTF and SAE/JIC 37 degree connections limit the assembly?

The straight rigid design joins male NPTF to male JIC 37 degree threads, so the joint cannot swivel and requires proper torque on both tapered and flare seats.

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