Model: 551AMC

Fixed Moun Mechanical Tachometer

Special Features:

Reference usaf dwg 56b23624, for special markings

Properties:

Mounting Type
Panel
Drive Connection Type
Flexible
Overall Depth
2.656 inches
Overall Diameter
2.843 inches
Case Material
Steel
Mounting Feature Type
Flush
Shaft Rotation Direction
Clockwise
Operating Range
+0.0/+4500.0 revolutions per minute
Graduation Unit
1 hr operation
Case Shape
Round
Scale Measurement Range
-800.0/+3000.0
Unit Type
Chronometric
Scale Quantity
1
Dial Quantity
1
Major Graduation Color
White
Minor Graduation Color
White
Dial Background Color
Black
Pointer Quantity
1
Pointer Color
White
Dial Illumination
Not provided
Scale Smallest Increment
100.0 revolutions per minute
Pointer Movement Direction
Clockwise
Driven Speed To Indicated Speed Minimum Ratio
2 to 1
Totalizing Mechanism
Provided
Totalizing Mechanism Calibration
Engine revolutions
Ahead-astern Semaphore
Not provided
Scale Measurement Unit
Rpm
NSN
6680-00-057-2776
Part Number
551AMC
Description
Tachometer,mechanical,fixed Moun
CAGE
57733

Part 551AMC NSN 6680-00-057-2776

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.8000lbs
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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