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Digital Readout Electronic Counter

NSN: 6625-00-118-6737 | Model: 554
ITAR Registered seal

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.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Overall Length
11.000 inches
Wattage Rating In Watts
Overall Height
6.094 inches
Overall Width
7.781 inches
Current Type
Frequency Rating
Between 50.0 hertz and 400.0 hertz
Electrical Connection Type
Voltage Rating
Between 115.0 volts and 230.0 volts
Mounting Method
Bench and rack
Frequency Range
+0.003 to 12.500 kilohertz F1 input ratio
Accuracy Rating
Porm time base
Display Positioned Decimal Point
Display Storage Facility

Parts List for Digital Reado Electronic Counter  

Other components in the assembly of NSN 6625-00-118-6737

Pricing and Availability

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NSN 6625-00-118-6737 Datasheet

Supply Class (FSC):
Electrical And Electronic Properties Measuring And Testing Instruments
Cross Reference:
  • 554
  • 5216A
  • 5216A
  • HP5216A
Cage Codes:
  • Viasys Respiratory Care Inc. (CAGE 53110)
  • Packard Company Hewlett (CAGE 28480)
  • Agilent Technologies, Inc. (CAGE 1MY97)
  • 6625-00-118-6737 replaces 6625-00-643-4041
Schedule B & Trade:
  • Schedule B: 9030908030 (NAICS 334515)

    Parts and accessories of articles of schedule b subheading 9030.39

  • SITC: 87479

    Parts and accessories for instruments and apparatus (except meters) measuring etc. Electrical quantities and devices measuring etc. Ionized radiations

  • End Use: 21160

    Measuring, testing, control instruments


P - Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of federal standard 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.


A - Item does not contain precious metal.


- Represents items with no adp components


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    061700 - Elec appliances/instruments noi

  • WCC:

    72D - Communications/electronics, other than sigint/ew or comsec repair parts and components

  • ACC:

    A - Supplies and equipment for aircraft and aerial targets, including aircraft and maintenance parts, aircraft accessories, aircraft

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • LCL:

    P - 77.5

  • SHC:

    Q - High sensitivity, category ii, aa&e, classified confidential

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
    No qup
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability
    If condemned or uneconomically repairable, then dispose at intermediate level.

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $4,860.00 to $8,100.00..
Does NSN 6625-00-118-6737 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Air Force, New Zealand, Germany, Republic Of Korea, United Kingdom, Portugal, Italy, Greece, and Turkey
What is the NIIN of NSN 6625-00-118-6737?
001186737 or 00-118-6737
Does NSN 6625-00-118-6737 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 6625-00-118-6737?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Oct 11, 1968