Variable Attenuator

NSN: 5985-00-009-4475 | Model: 704B-99

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 resistive 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 attenuator but whose terminals are not connected. See also resistor, vaiable (as modified).

NSN Properties and Flags

NATO Stock Number

5985-00-009-4475

DEMIL

Yes - ITAR Controlled (Code D)

Application Design

Transmission line

Body Style

Coaxial type

Overall Length

5.938 inches

Center To Center Distance Between Mounting Facilities Parallel To Length

4.062 inches

Center To Center Distance Between Mounting Facilities Parallel To Width

2.250 inches

Overall Height

2.719 inches

Overall Width

7.562 inches

Voltage Standing Wave Ratio

1.50

Coaxial Connector Series Designation

Power Rating

2.0 watts average and 2.0 kilowatts peak

Mounting Facility Screw Thread Series Designator

Unc

Overall Attenuation Range In Decibels

+0.0/+99.0

Attenuation Variation Method

Stepped

Step Position Quantity

Attenuation Per Step In Decibels

1.0

Mounting Facility Type And Quantity

4 threaded hole

Frequency Range

Between 0.000 gigahertz and 12.400 gigahertz

Segment Attenuation Range In Decibels

+1.00/+9.00 and +10.00 to 19.00 and +20.00 to 29.00 and +30.00/+39.00 and +40.00/+49.00 and +50.00 to 59.00 and +60.00 to 69.00 and +70.00/+79.00 and +80.00 to 89.00 and +90.00/+99.00

Segment Attenuation Accuracy In Decibels

-0.40 to 0.40 and -1.00/+1.00 and -1.20 to 1.20 and -1.40 to 1.40 and -1.50/+1.50 and -1.70/+1.70 and -1.80 to 1.80 and -2.00 to 2.00 and -2.00 to 2.00 and -2.00/+2.00

Mounting Thread Quantity

32 per inch

Adjustment Device Type And Quantity

2 knob

Mounting Facility Pattern

Four position rectangular

Mounting Facility Screw Thread Diameter

0.138 inches

Impedance Rating In Ohms

50.0 input-output

Terminal Type And Quantity

2 connector, coaxial, female

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 5985-00-009-4475 Datasheet

Supply Class (FSC):

Related Equipment Waveguides Antennas

Cross Reference:

704B-99
704-99

Cage Codes:

3 Communications Corporation L (CAGE 99899)

Replacements:

5985-00-009-4475 replaces 5985-00-484-9885

Schedule B & Trade:

Schedule B: 8529109000 (NAICS 334220)

Antenna & antenna reflectors of all kinds; parts suitable for use soley or principally w/ apparatus of heading 8525 to 8528, nesoi
SITC: 76493

Parts of television receivers, radiobroadcast receivers, transmission apparatus for radio telephony, telegraphy, broadcasting or television etc.
End Use: 21400

Telecommunications equipment

Identification:

HMIC

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.

PMIC

U - Precious metal content is unknown

CRITL

- 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:

W - Rating variable
TCC:

Z - No special type of cargo code applicable

Questions & Answers:
What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 5985-00-009-4475 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
National Aeronautics and Space Administration, Brazil, Belgium, Germany, Italy, Denmark, and Turkey
What is the NIIN of NSN 5985-00-009-4475?
000094475 or 00-009-4475
Does NSN 5985-00-009-4475 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5985-00-009-4475?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Aug 04, 1972