Brass Adapter, 1/4-18 Male NPT Square Head Plug

Alternate Part Numbers
Alternate Part Number C1HN80, Alternate Part Number MI-00333535, Alternate Part Number MINO-00925F73227
Application
Grease, refrigeration, instrumentation and hydraulic systems. Fuel, LP and natural gas available on special order.
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Size 1
0.25
End Type 1
PTF SAE Short
L
0.74
Minimum Working Temperature
-65
Supplier Part Number
3151X4
Thread 1
1/4-18
Thread Sealant
No
Product Weight
0.04 lbs

Product Questions & Answers

got a 1/4-18 NPT port i need to cap off, is this the right plug for that?
Question by: Frank F on Nov 2, 2025, 9:39 PM
For a 1/4-18 male NPT thread match, this plug is set up with 1/4-18 male threads, so it fits ports and fittings that take that same 1/4-18 NPT connection.
Answer by: Customer Support on Nov 4, 2025, 4:11 PM
Will this plug work with hydraulic systems, or is it mainly for other stuff like refrigeration?
Question by: Roy P on Apr 19, 2025, 9:55 PM
It's made to work in hydraulic systems, along with grease, refrigeration, and instrumentation setups. You can even get it special-ordered for fuel, LP, and natural gas applications too.
Answer by: Customer Support on Apr 21, 2025, 12:42 PM

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