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Steel Adapter, 1-7/16-12 Male SAE O-Ring Face Seal To 1-11-1/2 Male NPT, Straight

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Description & Features

Manufactured by Eaton Aeroquip, this straight steel adapter connects a 1-7/16-12 Male SAE O-Ring Face Seal (ORS) port to a 1-11-1/2 Male NPT thread, providing a reliable transition between these two common thread standards in a single inline fitting. The FF2031T Series is part of the FF2031T1616S configuration, with an overall dimension of 2.05 inches.

Suited for demanding fluid conveyance environments, this adapter sees regular use in marine and military systems, chemical processing, pulp and paper, food and beverage processing, and offshore drilling applications. The ORS end provides a leak-resistant face seal connection, while the NPT end accommodates standard tapered pipe thread ports.

Refer to Eaton's fluid compatibility documentation to confirm suitability for specific media before installation. Catalog number C1EC88 can be used for cross-referencing within Eaton Aeroquip literature.

SKU: FF2031T1616S

Supplier Part Number (MPN): FF2031T1616S

Alternate Part Numbers: C1EC88, MI-00306448, MINO-00015F55526

Specifications

Brand
Aeroquip® by Danfoss
Connection Size 1
1 in
Connection Size 2
1 in
Connection Type
Male ORFS, MNPT
Connection Type 1
Male ORFS
Connection Type 2
Male NPTF
Dimension Standards
SAE 520102/J1453
Dimensions
2.05 in L
Finish
Dura-Kote™
Fitting Type
Adapter
Hex Size
1-1/2 in
Material
Steel
Material Construction
Carbon Steel
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
FF2031T Series
Thread Size
1-7/16-12 x 1-11-1/2

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Product Questions & Answers (1)

Question by: Roy S on Jun 17, 2025, 6:43 PM
trying to hook up an ORS port to a pipe thread port. is this the right adapter if my ORS side is 1-7/16-12 and the other side is 1-11-1/2 male NPT?
Answer by: Customer Support on Jun 18, 2025, 9:01 PM
For that exact thread combo, yes. It is a straight steel adapter with a 1-7/16-12 Male SAE O-Ring Face Seal (ORS) on one end and a 1-11-1/2 Male NPT on the other, made to transition between those two standards in-line.

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