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04MFS-12MM STRAIGHT W/CAPTIVE SEAL

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Description & Features

This straight steel fitting, part number 04MFS-12MM, features a captive NBR O-ring seal. The 04MFS-12MM STRAIGHT W/CAPTIVE SEAL is manufactured with a B1 thread size of 9/16-18, adhering to SAE J1453 standards, and a B1 thread type of male face seal O-ring.

The B2 thread size is M12X1.5, conforming to standards for ISO 9974 ports, and a B2 thread type of male metric ED seal. This fitting is part of the FS7701-ED series.

SKU: FS7701-04-12

Supplier Part Number (MPN): FS7701-04-12

Specifications

Connection Size 1
1/4 in
Connection Size 2
12 mm
Connection Type
Male Metric, Male ORFS
Connection Type 1
Male ORFS
Connection Type 2
Male Metric Elastomeric Seal
Dimension Standards
SAE J1453
Finish
Zinc Trivalent
Fitting Type
Adapter
Hex Size
0.67 in
Material
Steel
Material Construction
12L14/C1045 Steel
Operating Temperature
-40 to 250 deg F
Seam Material
NBR
Series
FS7701 Series
Thread Size
9/16-18 x M12x1.5
Thread Specification B2
For ISO 9974 Port

Product Questions & Answers (1)

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Question by: Rex J on Mar 24, 2026, 12:20 PM
Will this here fitting work with a standard metric port?
Answer by: Customer Support on Mar 25, 2026, 2:46 PM
This straight steel fitting is made to fit an ISO 9974 port with its M12X1.5 B2 thread.

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