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Frequency Standard NSN 6625-01-365-1949

Item Description

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.

NSN 6625-01-365-1949 NSN: 6625-01-365-1949

Features and Characteristics

Overall Length
21.000 inches
Overall Height
5.200 inches
Overall Width
19.000 inches
Ac Voltage Rating
115.0 volts and 230.0 volts
Dc Voltage Rating
Between 22.0 volts and 30.0 volts
Frequency Rating
Between 47.0 hertz and 400.0 hertz
Frequency Range Rating
+5.000/+10.000 megahertz
Frequency Channel Quantity
2
Individual Channel Frequency
5.0 megahertz and 10.0 megahertz
Unit Type
Standard
Unpackaged Unit Weight
60.000 pounds
Mounting Method
Rack
Recording Device Accommodation
Not provided
Phase
Single
Special Features
Accuracy +/- 7x10-12; settability +/- 3x10-12; operating temp range 0 to 50deg. C; stability +/-3x10-12 over the life of the tube; spectral purity >81db for 10mhz and >87 for 5mhz; amplitude 1vrms into 50 ohm load; monitor output is a type d connector; warmup time is 20min for 10 mhz and 45 min for 5mhz; front panel connectors for 1pps, sync input, zeeman input, rf outputs; operating humidity, 95% up to 50c; option -116 is time of day display and a 1pps output; opt -075 is for an 8 year warranty on cesium beam tube; internal microprocessor provide for power up automatic lock routine; controlled by front panel switches and remote control through rear panel connector
Supplementary Features
Without -075 indicates 3 year warranty on cesium beam tube
FSC
6625 Electrical And Electronic Properties Measuring And Testing Instruments
NIIN
013651949
NSN
6625013651949

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FTS4060-075-116
Cage Code:
56219
Status:
A
MSDS:
Part Number:
FTS4060-116
Cage Code:
56219
Status:
A
MSDS:
Part Number:
1330655-1
Cage Code:
70143
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9030908030
  • NAICS: 334515
  • SITC: 87479
  • Description: Parts and accessories of articles of schedule b subheading 9030.39
  • End Use (Code 21160):
    Measuring, testing, control instruments

Q & A

Frequently asked questions for NSN 6625-01-365-1949
What are the manufacturers of nsn 6625013651949?
Does this nsn 6625013651949 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6625013651949
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.
Does nsn 6625013651949 contain any precious metals?
No precious metal content.
Does nsn 6625013651949 contain any hazardous materials?
No information in HMIRS. Hazardous material unknown.
What is the ESD classification of nsn 6625013651949?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
42641
FIIG:
T263-R
App. Key:
RA
Cond. Code:
1
Status:
A

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