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Time Measuring Instruments
Time Totalizing Meters
Part MIL-M-3971
Model #MIL-M-3971
Time totalizing meter (NSN 6645-00-151-5280)
Terminal Quantity
2
Terminal Type
Solder
Mounting Type
Panel
Body Diameter
2.210 inches
Current Type
Ac
Case Material
Any acceptable
Mounting Configuration
Three 0.125 in. Diameter mtg holes on 1.220 in. Radius spaced 120 degrees apart
Indicator Type
Drum register
Voltage Rating
120.0 volts
Measurement Unit
Hours
Unit Type
Mounted
Mounting Flange Diameter
2.695 inches
Operating Frequency
60.0 hertz
Hermetic Protection
Not provided
Movement Type
Electrical
Body Depth
3.000 inches
Smallest Increment Indicated
0.10
Mounting Method
Flush
Reset Feature
Not provided
Maximum Measurement
99999.90
Marking Color
Black numerals for minutes, white numerals for hours
Background Color
White background on tenths wheel, black background on hours wheel
Electrical Movement Type
Synchronous motor
Nondefinitive Specification/std Data
Ii type and a grade
Description
Meter,time Totalizing
Cage Code
81349
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Part Number:
MIL-M-3971
NSN 6645-00-151-5280
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Updated: 05/15/2024