Model: 66521-1

Frequency Standard

Properties:

Overall Depth
15.000 inches
Overall Height
3.500 inches
Overall Width
19.000 inches
Ac Voltage Rating
Between 90.0 volts and 132.0 volts or 180.0 volts and 265.0 volts
Frequency Range Rating
+47.000/+63.000 hertz
End Application
Wide area augmentation (waas)
Unit Type
Standard
Supplementary Features
1operating temp 0 degrees c - +50 degrees c; relative humidi type 95% up to 50degrees c (operating); altitude 0-10, 000 ft above sea level; magnetic field 1-2 gauss; input power-ac 65w operating 90w warm-up; single phase inputpower; weight 28 lbs
NSN
6625-01-530-7333
Part Number
66521-1
Description
Frequency Standard
CAGE
07KA5

An item that can generate a fundamental frequency with a high degree of accuracy. Harmonics of this fundamental are then used as a reference point for checking throughout the radio spectrum. The standard may be stable crystal oscillator, noncrystal oscillator, tuning fork, atomic beam, molecular beam, gas cell, quantum mechanical resonator, or the like.

Part 66521-1 NSN 6625-01-530-7333

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
42641
FIIG:
T263-R
Concept No.:
App. Key:
RA
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

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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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