6645-01-347-6783

Find complete technical information, availability, and procurement data for: 6645-01-347-6783
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Federal Supply Group

Instruments and Laboratory Equipment

Federal Supply Classification

6645 Time Measuring Instruments

National Stock Number

6645-01-347-6783

Item Name Code

04879

Assigment Date

10/26/1991 (34 years ago)

An item which actuates included electrical contacts and/or switches in an orderly succession, and at a predetermined interval(s) for the purpose of controlling the operation of another electrical device(s). May have provision for manually establishing an operational sequence or cycle. See also relay, motor driven; timer, interval; keyer (as modified); chronometer, make-break circuit and intervalometer (as modified).

rack mounting method, 20.500 inches nominal overall width, ac and dc current type, 5.218 inches nominal overall height, 18.250 inches nominal overall depth

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Depth: 18.250 inches nominal
Overall Height: 5.218 inches nominal
Overall Width: 20.500 inches nominal
Current Type: ac and dc
Mounting Method: rack
Operating Dc Voltage In Volts: 18.0
End Item Identification: 6645-01-063-0399,clock,regulating,master,model fe-5440a,opt fh8
Timer Type: electrical
Reset Type: electric
Dc Operated Clutch: not included
Automatic Electric Circuit Control Switch: not included
Interval Expiration Signalling Device: not included
Independently Operated Clock: included
Voltage In Volts: 115.0 or 230.0
Special Features: atomic freq references: 5 mhz and1 mhz thru front panel connectors; 3 mhz available thru rear panel; time-of-day clock incl led time in hours,mins,seconds; provides timing of 1 pps and 1 ppm outputs
Frequency In Hertz: 400.0
Color: gray/grey
Surface Treatment: paint case

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
D21700-6200-4	Master Regulating Clock

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 6645-01-347-6783?

The FSCG of the NSN 6645-01-347-6783 is 6645

Does the NSN 6645-01-347-6783 have a Schedule B code assigned?

Yes, the Schedule B code is 9104000000

Does NSN 6645-01-347-6783 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 6645-01-347-6783 contain precious materials?

Item does not contain precious metal.

Does NSN 6645-01-347-6783 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 6645-01-347-6783 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Sat, Oct 26, 1991