INCH-POUND
MIL-DTL-16356E
02 July 2013
SUPERSEDING
MIL-G-16356D
18 December 1987
DETAIL SPECIFICATION
GAUGES, DIRECT READING, OBLONG GLASS
This specification is approved for use by all Departments and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification covers direct reading sight indicators and gauges that use oblong glass panes of
the reflex or plain transparent type, including replacement glass and gasket sets.
1.2.1 Types. The types of gauges are as follows:
Type A - For continuous vision, plain, double, flat glass.
Type B - For reflex glass, pressures of 300 pounds per square inch gage (psig) and under.
Type C - For non-steam tank level applications or 150 psig or less steam applications where the visible range of
a single chamber design is acceptable. Gauges use plain, double flat glass as used in Type A, or reflex glass as used
in Type B. Included in Type C are welding pad gauges that are designed to become an integral part of a pressure
vessel or tank.
1.2.2 Classes. The classes of gauges are as follows:
Class I - For designed pressure to 700 psig (600 psig nominal) using 1500 psig glass.
Class II - For designed pressure to 1050 psig (900 psig nominal) using 1500 psig glass.
Class IV - For designed pressure to 2550 psig (2500 psig nominal) using 1500 psig glass (intended for nominal
1200 psig service).
Comments, suggestions, or questions on this document should be addressed to Commander, Naval Sea Systems
Command, ATTN: SEA 05S, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or
emailed to CommandStandards@navy.mil, with the subject line "Document Comment". Since contact information
can change, you may want to verify the currency of this address information using the ASSIST Online database at
https://assist.dla.mil.
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