Product Details | VARIABLE ATTENUATOR

5985-01-124-9694 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: SMA9769671, SM-A-976967-1, 5985-01-124-9694, 01-124-9694, 5985011249694, 011249694

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

Supply Group (FSG) NSN Assign. NIIN
59 17 JAN 1982 01-124-9694

Drawings & Photos | NSN 5985-01-124-9694


Cross Reference | NSN 5985-01-124-9694

Part Number Cage Code Manufacturer
SM-A-976967-1 31196 COMTECH PST CORP.
SM-A-976967-1 80063 US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS

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Technical Data | NSN 5985-01-124-9694

Characteristic Specifications
APPLICATION DESIGN WAVEGUIDE
FREQUENCY RANGE 900.000 MEGAHERTZ MINIMUM AND 8.400 GIGAHERTZ MAXIMUM
VOLTAGE STANDING WAVE RATIO 1.10
POWER RATING 50.0 WATTS AVERAGE
INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS 0.5
OVERALL ATTENUATION RANGE IN DECIBELS 0.0 TO 6.0
ATTENUATION VARIATION METHOD CONTINUOUS
BODY STYLE 1A WAVEGUIDE TYPE
OVERALL LENGTH 3.500 INCHES NOMINAL
OVERALL HEIGHT 1.875 INCHES NOMINAL
OVERALL WIDTH 1.875 INCHES NOMINAL
ADJUSTMENT DEVICE TYPE AND QUANTITY 1 KNOB
TERMINAL TYPE AND QUANTITY 2 FLANGE
WAVEGUIDE FLANGE DESIGNATION UG-138/U
MOUNTING FACILITY TYPE AND QUANTITY 4 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 LENGTH 1.352 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH 1.352 INCHES NOMINAL
III SCALE LINEARITY LINEAR
III SCALE DIVISION QUANTITY 6
III VERNIER SCALE DIVISION QUANTITY 1
III OPERATING TEMP RANGE -65.0 TO 155.0 DEG FAHRENHEIT
III WAVEGUIDE FLANGE TYPE COVER

Restrictions/Controls & Freight Information | NSN 5985-01-124-9694

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.
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 TX Defense Supply Center Columbus
Columbus, OH 43218
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 5985-01-124-9694

Category Code Description
Materiel Category and Inventory ManagerQ Electronics Materiel (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code4 Communications Systems Agency and Satellite Communications
Weapons Systems/End Item or Homogeneous Group4VSATCOM
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice CodesXSEMIACTIVE ITEM-NO REPLACEMENT (NON-STOCKED ITEMS) A potentially inactive NSN which must be retained in the supply system as an item of supply because (1) stocks of the item are on hand or in use below the wholesale level and (2) the NSN is cited in equipment authorization documents TO & E, TA, TM, etc., or in-use assets are being reported. 1. Items are authorized for central procurement but not authorized for stockage at wholesale level. 2. Requisitions for in-use replacement will be authorized in accordance with individual Military Service directives. 3. Requisitions may be submitted as requirements generate. Repetitive demands may dictate an AAC change to permit wholesale stockage.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
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