SAME DAY SHIPPING
— Order by 2pm EST.
Toggle Nav
Cart
Search
main product photo

08MFS-18MM STRAIGHT W/CAPTIVE SEAL

Ask A Question

Description & Features

Designed for connecting SAE face seal ports to metric hydraulic lines, the 08MFS-18MM Straight with Captive Seal is a straight steel adapter from Brennan Industries' FS7701-ED series. The male face seal end threads at 13/16-16 per SAE J1453, while the opposing male metric end is M18x1.5, compatible with ISO 9974 ports. The captive NBR O-ring seal on the metric end provides reliable sealing without requiring a separate seal component during installation.

Constructed from straight steel, this fitting suits hydraulic systems where a leak-free transition between SAE and metric port standards is required. The NBR seal material offers good compatibility with a wide range of hydraulic fluids. California residents should note that this product is subject to Proposition 65 warning requirements.

SKU: FS7701-08-18

Supplier Part Number (MPN): FS7701-08-18

Specifications

Connection Size 1
1/2 in
Connection Size 2
18 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
0.94 in
Material
Steel
Material Construction
12L14/C1045 Steel
Operating Temperature
-40 to 250 deg F
Seam Material
NBR
Series
FS7701 Series
Thread Size
13/16-16 x M18x1.5
Thread Specification B2
For ISO 9974 Port

Product Questions & Answers (1)

Sign In Hover me Please sign in to submit a question
Question by: Glen H on Nov 11, 2025, 6:23 AM
So this thing connects a SAE face seal to a metric line, right? Just want to make sure I'm understanding that correctly.
Answer by: Customer Support on Nov 12, 2025, 5:21 PM
That's right, this adapter is designed to connect SAE face seal ports to metric hydraulic lines, making the transition between the two standards leak-free.

Tell us what you need and we'll get back to you.

Fields marked * are required.