Product Details | VARIABLE ATTENUATOR

5985-00-556-0231 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 overall 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).

Part Alternates: X2212, X22-12, 7330227P103, R920, 5985-00-556-0231, 00-556-0231, 5985005560231, 005560231

Electrical and Electronic Equipment Components | Antennas, Waveguides, and Related Equipment

Supply Group (FSG) NSN Assign. NIIN
59 01 JAN 1963 00-556-0231

Demand History | NSN 5985-00-556-0231

Part Number Request Date QTY Origin
R920 2014-12-339 1

Cross Reference | NSN 5985-00-556-0231

Part Number Cage Code Manufacturer
7330227P103 99521 GENERAL ELECTRIC CO AUDIO ELECTRONICS PRODUCTS DEPT
R920 96067 M/A-COM LAND MOBILE COMMUNICATIONS DIV OF M/A-COM INC
R920 98521 CASCADE RESEARCH DIV OF HUGGINS LABORATORY INC
X22-12 98521 CASCADE RESEARCH DIV OF HUGGINS LABORATORY INC

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Technical Data | NSN 5985-00-556-0231

Characteristic Specifications
APPLICATION DESIGN WAVEGUIDE
FREQUENCY RANGE 8.200 MEGAHERTZ MINIMUM AND 12.400 MEGAHERTZ MINIMUM
VOLTAGE STANDING WAVE RATIO 1.45
POWER RATING 1.0 WATTS AVERAGE
OVERALL ATTENUATION RANGE IN DECIBELS 0.8 TO 38.0
OVERALL ATTENUATION ACCURACY IN DECIBELS -0.186 TO 0.186
ATTENUATION VARIATION METHOD CONTINUOUS
OVERALL WIDTH 1.625 INCHES NOMINAL
BODY LENGTH 1.625 INCHES NOMINAL
TERMINAL TYPE AND QUANTITY 2 BINDING POST
MOUNTING FACILITY TYPE AND QUANTITY 4 UNTHREADED HOLE
UNTHREADED MOUNTING HOLE DIAMETER 0.125 INCHES NOMINAL
III BODY MATERIAL COPPER

Restrictions/Controls & Freight Information | NSN 5985-00-556-0231

Category Code Description
Hazardous Material Indicator CodePThere is no information in the HMIS; 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
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 061700 ELEC APPLIANCES/INSTRUMENTS NOI
Less than car load rating W Rating Variable
Less than truck load rating W Rating Variable
Water commodity Code 658 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity H Signal Corps supplies and equipment, including radio equipment and supplies, communications equipment and supplies, electrical equipment and supplies, etc.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable