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Fittings / Mark VIII® / H859-12-16-M

Tube to Male Straight Thread Union Assembly

Data sheet
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American Engineering Trusted Wordwide ®

DATA SHEET

H859-12-16-M
11/13/2025 12:49 AM

Product Category H859-12-16-M
Part Description Tube to Male Straight Thread Union Assembly

Dimensions

A 0.750
B-THREAD 1.313" - 12UN
C-HEX 1.63
D 0.440
E 2.50
F 0.63
G-HEX 1.63

General

Pressure Rating 6000 PSI
Assembly Material Monel®, ASTM B164, UNS N04405
O-Ring Material Viton® Fluorocarbon Type 1, Class 2 (90 durometer)
Connection 1 Type Female Tube Socket
Connection 1 Size 3/4" Tube O.D. (-12)
Connection 2 Type Male Straight Thread
Connection 2 Size 1.313" - 12UN (-16)

cpvmfg.com | 484.731.4010

The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Caution: Do not mix or interchange valve components with those of other manufacturers.