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12 FS CAP ASSEMBLY INSERT & NUT

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Description & Features

Manufactured by Brennan Industries Inc this 12 FS Cap Assembly Insert & Nut is engineered to meet precise technical specifications. The insert cap assembly is a component designed for reliable performance in industrial applications. It features a tube O.D. of 3/4 inch contributing to its compatibility with corresponding systems.

With dimensions including a hex size of 1.375 inches and a height outer diameter of 1.097 inches this insert and nut assembly ensures a secure fit. The assembly measures 1.020 inches in length providing a compact yet robust solution. Its series FS0304-C reflects its specific design parameters and intended use cases.

Utilizing high-grade materials this cap assembly is built for durability and efficiency. Its compact design lends itself to versatile applications within industrial environments. This product maintains a standard of quality synonymous with its brand ensuring dependable performance.

MPN: FS0304-C-12

Supplier Part Number: FS0304-C-12

Specifications

Brand
BRENNAN
Connection Size 1
3/4 in
Connection Type
Female ORFS
Connection Type 1
SAE Female ORFS
Dimension Standards
SAE J1453
Dimensions
1.04 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Insert
For Use With
FS0318 Series Nuts
Hex Size
1-3/8 in
Material
Steel
Material Construction
AISI 12L14/1045 Steel
Maximum Operating Pressure
6000 psi
Series
FS0304-C Series
Thread Size
1-3/16-12
Tube Outside Diameter
3/4 in

Product Questions & Answers (3)

Question by: Neal H on Dec 9, 2025, 9:45 PM
what size tube does this cap assembly fit onto?
Answer by: Customer Support on Dec 11, 2025, 8:06 AM
Built around a 3/4 inch tube O.D., so if your line matches that outside diameter, this cap assembly should seat up right. The hex comes in at 1.375 inches, which gives you a solid wrench flat to work with during installation.
Question by: Harvey H on Feb 4, 2026, 1:07 PM
got a line with 3/4 tube, is this the right cap setup for it?
Answer by: Customer Support on Feb 5, 2026, 4:00 PM
For a 3/4 inch tube outside diameter, this cap assembly matches that tube O.D. and is built as an FS tube nut and insert style cap.
Question by: Harold H on Apr 13, 2025, 4:23 PM
What size wrench do I need for tightening this cap down?
Answer by: Customer Support on Apr 15, 2025, 6:05 AM
The hex size on this cap assembly insert and nut is 1.375 inches.

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