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Variable Attenuator

NSN: 5985-00-172-6259 | Model: 4704-69
ITAR Registered seal

A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable restive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuate but whose terminals are not connected. See also resistor, viable (as modified).

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Application Design
Transmission line
Body Style
Coaxial type
Overall Length
4.375 inches
Overall Height
3.750 inches
Overall Width
2.625 inches
Voltage Standing Wave Ratio
Coaxial Connector Series Designation
Power Rating
2.0 watts average and 200.0 watts peak
Insertion Loss At Minimum Attenuation In Maximum Decibels
Overall Attenuation Range In Decibels
+0.0 to 69.0
Attenuation Variation Method
Step Position Quantity
Attenuation Per Step In Decibels
Mounting Facility Type And Quantity
2 connector
Frequency Range
Between 0.000 hertz and 12.400 gigahertz
Segment Attenuation Range In Decibels
+0.00 to 1.00 and +1.00/+9.00 and +10.00 to 19.00 and +20.00/+29.00 and +30.00/+39.00 and +40.00 to 49.00 and +50.00 to 59.00 and +60.00 to 69.00
Segment Attenuation Accuracy In Decibels
-0.60 to 0.60 and -0.40 to 0.40 and -1.00/+1.00 and -1.20/+1.20 and -1.40/+0.40 and -1.50/+1.50 and -1.70 to 1.70 and -1.80 to 1.80
Adjustment Device Type And Quantity
2 knob
Impedance Rating In Ohms
50.0 input-output
Terminal Type And Quantity
2 connector, coaxial, female

Pricing and Availability

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NSN 5985-00-172-6259 Datasheet

Supply Class (FSC):
Related Equipment Waveguides Antennas
Cross Reference:
  • 4704-69
  • 4704B-69
  • 4704-69
  • 4704B-69DB
Cage Codes:
  • New Mexico Paint Mfg Co (CAGE 99888)
  • 3 Communications Corporation L (CAGE 99899)
Schedule B & Trade:
  • Schedule B: 8529109000 (NAICS 334220)

    Antenna & antenna reflectors of all kinds; parts suitable for use sole or principally w/ apparatus of heading 8525 to 8528, Nisei

  • SITC: 76493

    Parts of television receivers, radiobroadcast receivers, transmission apparatus for radio telephony, telegraphy, broadcasting or television etc.

  • End Use: 21400

    Telecommunications equipment


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.


U - Precious metal content is unknown


- 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:

    658 - Electrical appliances, small

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

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

  • ACC:

    H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)

  • LTL:

    J - 100.0

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $5,654.16 to $9,423.60..
Does NSN 5985-00-172-6259 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 Navy, and France
What is the NIIN of NSN 5985-00-172-6259?
001726259 or 00-172-6259
Does NSN 5985-00-172-6259 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5985-00-172-6259?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Sep 05, 1972