NSN 6625-00-935-1457, 6625009351457
Cancelled -> Replaced by 6625008801561

Federal Supply Classification: FSC 6625 - Electrical and Electronic Properties Measuring and Testing Instruments
National Item Identification Number: NIIN 009351457
Codification Country: United States
Item Name Code: INC 26835
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (P) There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 6625-00-935-1457

National Stock Number (NSN) 6625-00-935-1457, or NIIN 009351457, (counter,electronic,digital reado) was assigned February 14, 1968 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6625008801561.

There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 26835. [AN INSTRUMENT USED TO COUNT THE FREQUENCY OF RECURRENT ELECTRONIC EVENTS AND DISPLAY THE COUNT ON THE PANEL OF THE INSTRUMENT IN NUMERIC FORM. MAY ALSO INCLUDE FACILITIES FOR A READOUT PRINTED ON TAPE. MAY INCLUDE FACILITIES FOR A VERY ACCURATE OUTPUT WHICH CAN BE USED AS A SECONDARY TRANSFER STANDARD. IT CAN BE USED TO MEASURE FREQUENCY, PERIOD, TIME INTERVAL, PHASE ANGLE, FREQUENCY RATIO, AND FOR MULTIPLE PERIOD AVERAGING. SEE ALSO COUNTER, ELECTRONIC, DIGITAL AND INDICATOR, DIGITAL DISPLAY.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 6625009351457 contains an unknown precious metal.

This NSN is associated to Schedule B 9030908030: parts and accessories of articles of schedule b subheading 9030.39. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334515: instrument manufacturing for measuring and testing electricity and electrical signals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

FREQUENCY RANGE: (BFJB) +0.000010/+50.000000 MEGAHERTZ MULTIPLE PERIOD AND +0.000000/+50.000000 MEGAHERTZ MULTIPLE PERIOD AND +0.010000/+2.000000 MEGAHERTZ MULTIPLE PERIOD AND +0.000000/+1.000000 MEGAHERTZ MULTIPLE PERIOD AND +0.000000/+1.000000 MEGAHERTZ MULTIPLE PERIOD
PERIOD RANGE: (BFQJ) +1.0/+100.0
ACCURACY RATING: (BFJC) PORM 1 COUNT PORM 1 COUNT OF F1 AND PORM TRIGGER ERROR OF F2 PORM 0.03 PCT TRIGGER ERROR
COUNT RATE: (BFQL) 0.0 MEGAHERTZ MINIMUM SINGLE PERIOD AND 50.0 MEGAHERTZ MAXIMUM SINGLE PERIOD AND 10.0 HERTZ MINIMUM MULTIPLE PERIOD AND 50.0 MEGAHERTZ MAXIMUM MULTIPLE PERIOD
CURRENT TYPE: (ACDC) AC
DISPLAY POSITIONED DECIMAL POINT: (BFQR) PROVIDED
DISPLAY DIGIT QUANTITY: (BFQP) 8
DISPLAY STORAGE FACILITY: (BFQS) INCLUDED
DISPLAY TYPE: (BFQN) NUMERIC READOUT TUBE
DISPLAY UNITS INDICATOR: (BFQQ) INCLUDED
ELECTRICAL CONNECTION QUANTITY: (ASKX) 2
ELECTRICAL CONNECTION TYPE: (AGBD) BNC
FREQUENCY ACCURACY/STABILITY: (BFRC) PORM 0.3 PCT
FREQUENCY OUTPUT AMPLITUDE: (BFRF) 6.0 VOLTS PEAK TO PEAK
FREQUENCY RANGE: (BFJB) +0.000010 TO 50.000000 MEGAHERTZ MULTIPLE PERIOD AND +0.000000 TO 50.000000 MEGAHERTZ MULTIPLE PERIOD AND +0.010000 TO 2.000000 MEGAHERTZ MULTIPLE PERIOD AND +0.000000 TO 1.000000 MEGAHERTZ MULTIPLE PERIOD
FREQUENCY RATING: (ACZB) 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM
GATE TIME: (BFJF) 10.0 SECONDS NOMINAL
INCLOSURE MATERIAL AND LOCATION: (BFQX) STEEL CASE
INCLOSURE SURFACE TREATMENT AND LOCATION: (BFQY) ENAMEL CASE
INTERNAL BATTERY ACCOMMODATION: (ALSF) NOT INCLUDED
INTERNAL CALIBRATION FEATURE: (BFQM) NOT INCLUDED
JOINT ELECTRONICS TYPE DESIGNATION SYSTEM ITEM TYPE NUMBER: (AKWB) TD-875/P//U
JOINT ELECTRONICS TYPE DESIGNATION SYSTEM ITEM NAME: (AKWA) COUNTER,ELECTRONIC,DIGITAL READOUT
PERIOD RANGE STEP QUANTITY: (BFQK) 7 DECADE STEPS
PERIOD RANGE: (BFQJ) +1.0 TO 100.0
PHASE: (FAAZ) SINGLE
MEASUREMENT TYPE: (BFHZ) FREQUENCY AND RATIO AND PERIOD AVERAGE
MOUNTING METHOD: (AXGY) BENCH
OUTPUT FREQUENCY RATING: (APTS) 50.0 MEGAHERTZ NOMINAL
OUTPUT FREQUENCY WAVEFORM: (BFRD) SINUSOIDAL
OVERALL HEIGHT: (ABKW) 5.250 INCHES NOMINAL
OVERALL LENGTH: (ABHP) 19.000 INCHES NOMINAL
OVERALL WIDTH: (ABMK) 17.000 INCHES NOMINAL
PLUG-IN UNITS PROVISION: (BFQZ) INCLUDED
RATIO DISPLAY: (BFQH) F1/F2 TIMES PERIOD MULTIPLIER
REMOTE CONTROL PROVISIONS: (BFQT) NOT INCLUDED
SENSITIVITY RATING: (BFJG) F1 INPUT 0.1 V RMS INTO 5000 OHMS F2 INPUT 1.0 V RMS,10 KC PER V
SOLID STATE FEATURE: (BFQW) INCLUDED
STANDARD FREQUENCY OUTPUT FEATURE: (BFRB) INCLUDED
VOLTAGE RATING: (AMSE) 115.0 VOLTS NOMINAL OR 230.0 VOLTS NOMINAL
WATTAGE RATING IN WATTS: (ABJL) 125.0
ACCURACY RATING: (BFJC) PORM 1 COUNT! PORM 1 COUNT OF F1 AND PORM TRIGGER ERROR OF F2! PORM 0.03 PCT TRIGGER ERROR