Eaton
Eaton Aeroquip 2021-12-10SS Hydraulic Adapter
Connects 3/4-inch NPTF male to 5/8-inch JIC male threads in 316 stainless steel for 5,000 psi hydraulic systems
- Male NPTF to male JIC straight adapter for hydraulic systems
- 316 stainless steel construction resists corrosion in harsh environments
- Rated to 5,000 psi for high-pressure hydraulic applications
- SAE/JIC 37-degree flare ensures reliable metal-to-metal seal
- No O-ring included; crimp-free design simplifies field installation
Application and purpose
The Eaton Aeroquip 2021-12-10SS is a straight hydraulic adapter that joins a male 3/4-14 NPTF port to a male 7/8-14 JIC 37-degree flare. It is built for hydraulic circuits that require a corrosion-resistant 316 stainless steel connection between those two thread standards.
Thermals, noise and power
This component has no moving parts, electrical draw or cooling requirements. It adds no audible noise or thermal load to the system and simply transmits fluid pressure through its rigid stainless steel body.
Sustained load behaviour
Rated for 5,000 psi working pressure, the fitting maintains its seal under continuous high-pressure service without crimping or an included O-ring. The 316 stainless construction resists chemical attack and mechanical fatigue over extended duty cycles.
Highlights
- Male NPTF to male JIC straight adapter for hydraulic systems
- 316 stainless steel construction resists corrosion in harsh environments
- Rated to 5,000 psi for high-pressure hydraulic applications
- SAE/JIC 37-degree flare ensures reliable metal-to-metal seal
- No O-ring included; crimp-free design simplifies field installation
Specifications
| Brand | EATON AEROQUIP |
|---|
Questions about this item
How do I install the 3/4-14 NPTF end without leaking?
Wrap PTFE tape on the male NPTF threads, thread by hand until snug, then tighten one to two turns with a wrench; the taper creates the seal, so do not use a copper washer or O-ring on this end.
What replacement parts will the 7/8-14 JIC 37-degree flare need over time?
The 316 stainless flare nose can gall or crack after repeated make-break cycles; keep spare 5/8 in JIC nuts and sleeves to rebuild the connection without replacing the whole adapter.
At what pressure does the 5,000 psi rating become the limiting factor during sustained operation?
The 5,000 psi working pressure is the first limit reached; continuous cycling near that value will stress the 316 stainless threads and flare before temperature or vibration causes failure.
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