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Steel Adapter, 9/16-18 Male O-Ring Face Seal To 1-3/16-12 Male O-Ring Face Seal, Straight Bulkhead

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Description & Features

This steel adapter from Eaton Aeroquip features a 9/16-18 Male O-Ring Face Seal to 1-3/16-12 Male O-Ring Face Seal connection. As a straight bulkhead union adapter, it is suited for applications including marine/military, chemical processing, pulp and paper industries, food and beverage processing, and off-shore drilling.

The Eaton Aeroquip steel adapter, part number C1GE90, offers robust performance in demanding hydraulic applications.

SKU: FF1994T0404S

Supplier Part Number (MPN): FF1994T0404S

Alternate Part Numbers: C1GE90, MI-05156371, MINO-00015X00292

Specifications

Brand
Aeroquip® by Danfoss
a Dimensions
1.47 in
b Dimensions
1.82 in
Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Type
Male ORFS
Connection Type 1
Male ORFS
Connection Type 2
Male ORFS
Dimension Standards
SAE 520601/J1453
Dimensions
1.9 in L
Finish
Dura-Kote™
Fitting Type
Adapter
Hex Size
0.81 in
Material
Steel
Material Construction
Carbon Steel
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
FF1994T Series
Thread Size
9/16-18
Tube OD
1/4 in

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Product Questions & Answers (3)

Question by: Warren F on May 3, 2025, 5:17 PM
trying to replace a bulkhead union i got, does this one go from 9/16-18 ORFS up to 1-3/16-12 ORFS?
Answer by: Customer Support on May 5, 2025, 1:06 PM
It is a straight bulkhead union adapter with a 9/16-18 male O-Ring Face Seal on one side and a 1-3/16-12 male O-Ring Face Seal on the other.
Question by: Harvey P on Sep 7, 2025, 1:17 PM
What industries is this bulkhead adapter actually built for? Trying to figure out if it fits our setup before we order.
Answer by: Customer Support on Sep 9, 2025, 11:39 AM
Marine and military applications, chemical processing, pulp and paper, food and beverage, and offshore drilling are all listed uses for this adapter. If your operation falls into any of those categories, it was put together with that kind of environment in mind. The O-ring face seal connections on both ends help keep things leak-tight, which matters a lot in those tougher settings.
Question by: Curt M on Jul 3, 2025, 1:46 PM
Will this adapter work for connecting two hoses through a panel?
Answer by: Customer Support on Jul 4, 2025, 5:26 PM
Yes it's a straight bulkhead adapter which means it's designed to pass through a panel or wall, connecting hoses on either side.

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