Product Details | DIAL INDICATING DIFFERENTIAL GAGE

6685-00-653-8516 An instrument designed to measure air, gas, fluid, and vapor differential by means of a pressure sensitive element(s) which transmits energy, by direct linkage, to the indicating pointer of a scale calibrated to units of pressure. The scale may indicate in units of pressure, quantity, or flow.

Part Alternates: 149001, 163, 226, 6685-00-653-8516, 00-653-8516, 6685006538516, 006538516

Instruments and Laboratory Equipment | Pressure, Temperature, and Humidity Measuring and Controlling Instruments

Supply Group (FSG) NSN Assign. NIIN
66 01 JAN 1963 00-653-8516

Cross Reference | NSN 6685-00-653-8516

Part Number Cage Code Manufacturer
149001 82577 RAYTHEON COMPANY DBA RAYTHEON
163 05991 CAMERON TECHNOLOGIES US, INC. DBA CAMERON'S MEASUREMENT SYSTEMS
226 05991 CAMERON TECHNOLOGIES US, INC. DBA CAMERON'S MEASUREMENT SYSTEMS

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Technical Data | NSN 6685-00-653-8516

Characteristic Specifications
ACTUATION TYPE DOUBLE BELLOWS
ACTUATING ELEMENT MATERIAL BERYLLIUM COPPER
SCALE TYPE SINGLE AND DIAL
SCALE NAME POUNDS PRESSURE
SCALE RANGE 0.0 TO 50.0 POUNDS PRESSURE PER SQUARE INCH
SCALE ACCURACY 0.5 PCT ENTIRE RANGE
GRADUATION UNIT 5.0 POUNDS PER SQUARE INCH
SCALE SMALLEST INCREMENT 0.5 POUNDS PER SQUARE INCH
SCALE INSCRIPTION/BACKGROUND COLOR WHITE FIGURES ON BLACK BACKGROUND
DIAL SIZE 3 IN.DIA
SCALE MARKING INCHES OF WATER
POINTER TYPE INDICATING
ADJUSTABILITY ADJUSTABLE
POINTER COLOR WHITE
CASE MATERIAL ALUMINUM, DIE CAST
CASE SURFACE TREATMENT ENAMEL, BLACK
OVERALL WIDTH 4.125 INCHES NOMINAL
OVERALL HEIGHT 3.250 INCHES NOMINAL
OVERALL DEPTH 4.188 INCHES NOMINAL
PROTECTIVE CRYSTAL MATERIAL GLASS
CONNECTION QUANTITY 4
CONNECTION TYPE INTERNAL
CONNECTION LOCATION UPPER AND LOWER
CONNECTION SIZE 0.500 IN.NPT DIA; 0.250 IN.NPT DIA
MOUNTING METHOD FLUSH PANEL OR BRACKET AND STUD
BOLT CIRCLE DIAMETER 3.500 INCHES NOMINAL
MOUNTING HOLE QUANTITY 4
MOUNTING HOLE DIAMETER 0.169 INCHES NOMINAL
CONNECTOR TYPE VENT PROVIDED
SPECIAL FEATURES 3000 PSI RATED STEEL HOUSING
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS SINGLE READING SCALE,CONNECTION DATA AND SPECIAL FEATURES
MANUFACTURERS CODE 05991
DESIGN CONTROL REFERENCE 226

Restrictions/Controls & Freight Information | NSN 6685-00-653-8516

Category Code Description
Hazardous Material Indicator CodePThere is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product
Demilitarization Code:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 121570 GAGES AIR LIQUID LEVEL PRESSURE
Less than car load rating J 100.2
Less than truck load rating J 100.2
Water commodity Code 653 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity
Air Special Handling Q Extremely fragile items including delicate instruments.
Special Handling Code Q unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable