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Liquid And Mechanical Motion Measuring Instruments
Fixed Moun Mechanical Tachometers
Part 551ALD
Model #551ALD
Fixed moun mechanical tachometer (NSN 6680-00-994-7273)
Mounting Type
Panel
Drive Connection Type
Flexible
Overall Depth
2.297 inches
Overall Diameter
3.344 inches
Case Material
Brass
Mounting Feature Type
Flush
Shaft Rotation Direction
Clockwise
Operating Range
+0.0/+1500.0 revolutions per minute
Graduation Unit
1 hr operation
Case Shape
Round
Scale Measurement Range
+0.0/+1500.0
Unit Type
Magnetic
Scale Quantity
1
Dial Quantity
1
Major Graduation Color
White
Minor Graduation Color
White
Dial Background Color
Black
Pointer Quantity
1
Pointer Finish
Any acceptable
Pointer Color
White
Dial Illumination
Not provided
Scale Smallest Increment
50.0 revolutions per minute
Scale Finish
Any acceptable
Pointer Movement Direction
Counterclockwise
Driven Speed To Indicated Speed Minimum Ratio
2 to 1
Totalizing Mechanism
Provided
Totalizing Mechanism Calibration
Hours operated
Ahead-astern Semaphore
Not provided
Scale Measurement Unit
Revolutions per minute
Description
Tachometer,mechanical,fixed Moun
Cage Code
57733
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Part Number:
551ALD
NSN 6680-00-994-7273
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Updated: 11/24/2024