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Time Totalizing Meters
Part M3971/1-7
Model #M3971/1-7
Time totalizing meter (NSN 6645-00-925-3857)
Terminal Quantity
2
Terminal Type
Solder lug or stud
Mounting Type
Panel
Body Diameter
2.625 inches
Current Type
Dc
Case Material
Any acceptable
Mounting Configuration
Three 0.150 in. Diameter mtg holes on 1.580 in. Radius spaced 120 degrees apart
Indicator Type
Drum register
Voltage Rating
Between 4.0 volts and 40.0 volts
Measurement Unit
Hours
Unit Type
Mounted
Mounting Flange Diameter
3.500 inches
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
9999.90
Marking Color
White numerals for hours, black numerals for tenths
Background Color
Black background on hr wheels, white background on tenths wheel
Electrical Movement Type
Magnetic
Nondefinitive Specification/std Data
B grade and 1 type
Description
Meter,time Totalizing
Cage Code
81349
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Part Number:
M3971/1-7
NSN 6645-00-925-3857
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Updated: 06/17/2024