PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-A-945407Attenuator,variable

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5985-01-079-0447 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-079-0447 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-079-0447. Primary manufacturer part number: SM-A-945407.
Features
  • Attenuator,variable — FSC 5985
  • Mounting Facility Type and Quantity: 1 THREADED BUSHING
  • Body Style: COAXIAL TYPE
  • Application Design: TRANSMISSION LINE
  • Frequency Range: 0.000 GIGAHERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
  • Voltage Standing Wave Ratio: 1.50
  • Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.7
  • Mounting Facility Screw Thread Series Designator: UNEF
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-01-079-0447, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-079-0447
Primary Part NumberSM-A-945407
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Mounting Facility Type and Quantity1 THREADED BUSHING
Body StyleCOAXIAL TYPE
Application DesignTRANSMISSION LINE
Frequency Range0.000 GIGAHERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
Voltage Standing Wave Ratio1.50
Insertion Loss at Minimum Attenuation in Maximum Decibels0.7
Mounting Facility Screw Thread Series DesignatorUNEF
Overall Attenuation Accuracy in Decibels-1.00 TO 1.00
Mounting Facility Nominal Screw Thread Diameter0.375 INCHES IN
Terminal Type and Quantity2 CONNECTOR, COAXIAL, FEMALE
Overall Attenuation Range in Decibels+0.0 TO 90.0
Segment Attenuation Range in Decibels+0.00 TO 50.00
Attenuation Variation MethodSTEPPED
Coaxial Connector Series DesignationSMA
Shaft Diameter0.250 INCHES NOMINAL IN
Attenuation Per Step in Decibels10.0
Scale Division Quantity90
Mounting Thread Quantity32 PER INCH
Scale LinearityLINEAR
Shaft TypeROUND
Operating Temp Range-20.0 TO 85.0 CELSIUS DEGC
Shaft Length0.880 INCHES NOMINAL IN
Step Position Quantity9
Power Rating2.0 WATTS AVERAGE AND 200.0 WATTS PEAK
Adjustment Device Type and Quantity1 SHAFT
Impedance Rating in Ohms50.0 INPUT-OUTPUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-012-9501 INTERCHANGEABLE
Screw,wood
2530-00-848-644387897R91 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5975-01-223-60229698 INTERCHANGEABLE
Bushing,electrical Conduit
Carlisle & Finch Co
Cross-Reference Index
Part NumberManufacturer
9698 Spectrum Control Inc Div Weinschel (USA)
SM-A-945407 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5305-00-012-9501INTERCHANGEABLE
SCREW,WOOD
2530-00-848-6443INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
87897R91
5975-01-223-6022INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
9698

Frequently Asked Questions

What is NSN 5985-01-079-0447?

NSN 5985-01-079-0447 is a Attenuator,variable, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-079-0447?

NSN 5985-01-079-0447 has 2 cross-referenced part numbers: 9698 (Spectrum Control Inc Div Weinschel), SM-A-945407 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5985-01-079-0447?

There are 3 known substitutes for 5985-01-079-0447: 5305-00-012-9501, 2530-00-848-6443, 5975-01-223-6022. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-A-945407?

Key specifications for SM-A-945407: Mounting Facility Type and Quantity: 1 THREADED BUSHING; Body Style: COAXIAL TYPE; Application Design: TRANSMISSION LINE; Frequency Range: 0.000 GIGAHERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM. 29 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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