Model: LM21

Electrical Frequency Meter

Properties:

Circuit Current For Which Designed
Ac
Overall Length
7.875 inches
Overall Height
8.188 inches
Overall Width
8.938 inches
Frequency Rating
Between 50.0 hertz and 60.0 hertz
Furnished Items And Quantity
Book calibration, 1; cable power 1
Installation Design
Bench
Frequency Response Range
+0.12/+20.00 megahertz
Features Provided
Internal frequency calibrating crystal
Accuracy Rating
Porm 0.1 pct from 2 to 20 mhz; porm 0.02 pct from 125 mhz all indicators all ranges
Operating Voltage Rating In Volts
Between 100.0 ac and 130.0 ac
Phase
Single
Material
Aluminum
NSN
6625-00-635-4260
Part Number
LM21
Description
Meter,electrical Frequency
CAGE
80064

An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in hertz (cycles per second or cps). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see calibrator, frequency; and wavementer. excludes: counter electronic digital.

Part LM21 NSN 6625-00-635-4260

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16454
FIIG:
A310A0
Concept No.:
App. Key:
A
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:
P
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061700
UFC:
34580
LTL:
RATING VARIABLE
LCL:
RATING VARIABLE
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 9030908030
  • SITC: 87479
  • End Use: Measuring, testing, control instruments
  • NAICS: 334515
  • USDA: 1

Freight Class: Parts and accessories of articles of schedule b subheading 9030.39

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