Model: 551ALD

Fixed Moun Mechanical Tachometer

Properties:

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
NSN
6680-00-994-7273
Part Number
551ALD
Description
Tachometer,mechanical,fixed Moun
CAGE
57733

Part 551ALD NSN 6680-00-994-7273

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
07115
FIIG:
T145-E
Concept No.:
1
App. Key:
EA
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.2000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
05
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
177220
UFC:
87150
LTL:
100.0
LCL:
--
WCC:
653
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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