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Steel Adapter, 7/8-14 Male JIC 37 deg Flare Hex Plug

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Description & Features

This Danfoss / Eaton 900599 Series straight adapter is a steel adapter with a 7/8-14 Male JIC 37 deg Flare Hex Plug. It is designed for use in hydraulic, instrumentation, and chemical processing systems.

The adapter features a male SAE 37 end with a size of 0.875 and a female SAE 37 end with a 7/8-14 thread. It has a minimum working temperature of -40. The product model label is 37° Flare Union Steel Adapters. The tube O D is 0.63.

SKU: 900599-10S

Supplier Part Number (MPN): 900599-10S

Alternate Part Numbers: 20011203, C1CB14, MI-00317260, MINO-00015F64575

Specifications

A
1.10
Alternate Part Numbers
Alternate Part Number 20011203, Alternate Part Number C1CB14, Alternate Part Number MI-00317260, Alternate Part Number MINO-00015F64575
Application
Other - Hydraulic, instrumentation, and chemical processing 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
0.88
End Type 1
SAE 37
End Type 2
SAE 37
Minimum Working Temperature
-40
Supplier Part Number
900599-10S
Thread 2
7/8-14
Thread Sealant
No
Tube O.D.
0.63
Tube O.D.
0.63
Product Weight
0.06 lbs

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Product Questions & Answers (6)

Question by: Rhonda M on Jan 6, 2026, 7:14 AM
trying to plug off a 7/8-14 jic flare port, is this the right one?
Answer by: Customer Support on Jan 7, 2026, 7:16 AM
For a 7/8-14 SAE 37 degree flare (JIC) connection, this is a straight steel hex plug with a 7/8-14 male end, so it matches that thread and flare style.
Question by: Scott H on Feb 18, 2026, 10:15 AM
Will this plug work for hydraulic systems, or is it just for instrumentation?
Answer by: Customer Support on Feb 20, 2026, 6:41 AM
It's suitable for hydraulic systems, instrumentation, and even chemical processing setups.
Question by: Marvin B on Mar 3, 2026, 7:42 AM
Got a 7/8-14 JIC fitting on a hydraulic line that needs to be capped off. This the right plug for that?
Answer by: Customer Support on Mar 5, 2026, 6:05 AM
For a 7/8-14 JIC 37 degree flare port, yes, that is exactly what this plug is made for. It is a male JIC fitting that threads directly into a female 7/8-14 JIC port and seals at the 37 degree flare seat. No thread sealant needed since the metal-to-metal flare contact handles the seal. Works for hydraulic systems as well as instrumentation and chemical processing lines.
Question by: Ronnie A on Nov 21, 2025, 3:46 PM
Will this plug up a hydraulic port good?
Answer by: Customer Support on Nov 23, 2025, 7:38 AM
It is designed to seal a 7/8-14 male JIC 37 degree flare fitting.
Question by: Lance H on Nov 25, 2025, 1:01 PM
fitting says 7/8-14 male JIC, that the thread pitch I need to match up with a standard JIC female port or is there something special about this one?
Answer by: Customer Support on Nov 27, 2025, 9:49 AM
Standard 7/8-14 UNF thread on the male end, so it'll mate with any female JIC port running that same thread size. The 37-degree flare angle is the defining factor for JIC connections, and this plug matches that spec. As long as your port is a genuine JIC 37-degree flare fitting, you're looking at a direct match with no adapters or modifications needed.
Question by: Vince E on Oct 7, 2025, 6:54 PM
got a 7/8-14 jic port i need to cap off, is this the right plug or am i mixin up thread styles
Answer by: Customer Support on Oct 9, 2025, 6:02 AM
For a 7/8-14 JIC 37 degree flare connection, this is the matching style. It’s a straight steel hex plug with a 7/8-14 male JIC 37 degree flare end, in the Eaton Aeroquip 900599 series (catalog number C1CB14).