Model: 218-0057-031

Frequency Standard

Special Features:

(sma)rf output connection, rubidi um based with bite monitoring points

Properties:

Overall Depth
4.500 inches
Overall Height
3.250 inches
Overall Width
3.250 inches
Dc Voltage Rating
Between 23.4 volts and 28.6 volts
Frequency Range Rating
+5.000/+10.000 megahertz
End Application
Tcg, after milstar
Unpackaged Unit Weight
4.600 pounds
Recording Device Accommodation
Not provided
Functional Description
Highly accurate reference point for testing/checking over the radio spectrum
Nuclear Hardness Critical Feature
Hardened
NSN
6625-01-537-3375
Part Number
218-0057-031
Description
Frequency Standard
CAGE
SE093

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 218-0057-031 NSN 6625-01-537-3375

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:
A
ESD:
A
MMAC:
MZ
CRITL:
H

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
12.5 X 8.3 X 4.0
Paclk Weight:
4.0000lbs
Item Weight:
2.0000lbs
Item Dim:
011000700015
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
F000009XC6
SPI Rev.:
SPC Mkg:
39
LVL_A:
LVL_B:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061700
UFC:
34580
LTL:
RATING VARIABLE
LCL:
--
WCC:
72D
TCC:
3
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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