Product Details | VARIABLE ATTENUATOR

5985-00-239-0197 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: B80732, B-8073-2, B90032, B9003-2, 155A18, 155-A18, 21857732, 2185773-2, 31H1001, 31-H-1001, 5985-00-239-0197, 00-239-0197, 5985002390197, 002390197

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

Supply Group (FSG) NSN Assign. NIIN
59 30 DEC 1971 00-239-0197

Drawings & Photos | NSN 5985-00-239-0197


Cross Reference | NSN 5985-00-239-0197

Part Number Cage Code Manufacturer
155-A18 00929 MICROLAB/FXR
2185773-2 49671 LOCKHEED MARTIN CORP LOCKHEED MARTIN INFORMATION SYSTEMS
31-H-1001 00443 WAVELINE INCORPORATED
B-8073-2 17250 MCS CORPORATION
B9003-2 17250 MCS CORPORATION

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Technical Data | NSN 5985-00-239-0197

Characteristic Specifications
APPLICATION DESIGN WAVEGUIDE
FREQUENCY RANGE 7.000 GIGAHERTZ MINIMUM AND 11.000 GIGAHERTZ MAXIMUM
VOLTAGE STANDING WAVE RATIO 1.15
POWER RATING 1.0 WATTS AVERAGE
INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS 0.5
OVERALL ATTENUATION RANGE IN DECIBELS 0.0 TO 20.0
OVERALL ATTENUATION ACCURACY IN DECIBELS -1.00 TO 1.00
ATTENUATION VARIATION METHOD CONTINUOUS
BODY STYLE 1A WAVEGUIDE TYPE
OVERALL LENGTH 6.000 INCHES NOMINAL
OVERALL HEIGHT 2.343 INCHES NOMINAL
OVERALL WIDTH 1.687 INCHES MAXIMUM
ADJUSTMENT DEVICE TYPE AND QUANTITY 1 KNOB
TERMINAL TYPE AND QUANTITY 2 FLANGE
WAVEGUIDE FLANGE DESIGNATION UG-1493/U AND UG-1494/U
MOUNTING FACILITY TYPE AND QUANTITY 2 TERMINAL W/MOUNTING HOLES AND 8 UNTHREADED HOLE
MOUNTING FACILITY PATTERN FOUR POSITION RECTANGULAR
UNTHREADED MOUNTING HOLE DIAMETER 0.169 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH 1.280 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO HEIGHT 1.340 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 5985-00-239-0197

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: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
Less than truck load rating J 100.2
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 5985-00-239-0197

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each