Product Details | VARIABLE ATTENUATOR

5985-00-939-8283 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: 256178, 5985-00-939-8283, 00-939-8283, 5985009398283, 009398283

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

Supply Group (FSG) NSN Assign. NIIN
59 30 NOV 1965 00-939-8283

Drawings & Photos | NSN 5985-00-939-8283


Cross Reference | NSN 5985-00-939-8283

Part Number Cage Code Manufacturer
256178 1PQF4 L-3 COMMUNICATIONS CORPORATION DBA LINK SIMULATION & TRAINING
256178 36378 RAYTHEON TECHNICAL SERVICES COMPANY

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Technical Data | NSN 5985-00-939-8283

Characteristic Specifications
APPLICATION DESIGN AUDIO
SCHEMATIC DIAGRAM DESIGNATOR 8D T
IMPEDANCE RATING IN OHMS 600.0 INPUT-OUTPUT
POWER RATING 2.5 WATTS AVERAGE
OVERALL ATTENUATION RANGE IN DECIBELS 0.0 TO 30.0
ATTENUATION VARIATION METHOD CONTINUOUS
BODY DIAMETER 1.718 INCHES NOMINAL
BUSHING LENGTH 0.375 INCHES NOMINAL
TERMINAL TYPE AND QUANTITY 6 TAB, SOLDER LUG
MOUNTING FACILITY TYPE AND QUANTITY 1 THREADED BUSHING
MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR UNEF
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER 0.375 INCHES
MOUNTING THREAD QUANTITY 32 PER INCH
MANUFACTURERS CODE 36378
DESIGN CONTROL REFERENCE 256178

Restrictions/Controls & Freight Information | NSN 5985-00-939-8283

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
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 HH Navy ICP
Mechanicsburg, PA 17055-0788
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

Management | NSN 5985-00-939-8283

Category Code Description
Cognizance Codes9NNavy-owned stocks of defense electronic material
Naval Inventory Control Point, Mechanicsburg
Source of SupplyS9EDefense Supply Center Columbus
Columbus, OH 43218
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each