PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

447AAttenuator,variable

Kay Elemetrics Corporation · NSN 5985-00-275-5097 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-275-5097 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-275-5097. Primary manufacturer part number: 447A.
Features
  • Attenuator,variable — FSC 5985
  • Application Design: TRANSMISSION LINE
  • Adjustment Device Type and Quantity: 9 KNOB
  • Frequency Range: 0.000 HERTZ MINIMUM AND 500.000 MEGAHERTZ MAXIMUM
  • Step Position Quantity: 9
  • Impedance Rating in Ohms: 75.0 INPUT-OUTPUT
  • Mounting Facility Type and Quantity: 4 THREADED HOLE(S)
  • Overall Attenuation Range in Decibels: +0.0 TO 102.5
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-275-5097, 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 Kay Elemetrics Corporation. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5985-00-275-5097
Primary Part Number447A
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerKay Elemetrics Corporation
StatusACTIVE
Application DesignTRANSMISSION LINE
Adjustment Device Type and Quantity9 KNOB
Frequency Range0.000 HERTZ MINIMUM AND 500.000 MEGAHERTZ MAXIMUM
Step Position Quantity9
Impedance Rating in Ohms75.0 INPUT-OUTPUT
Mounting Facility Type and Quantity4 THREADED HOLE(S)
Overall Attenuation Range in Decibels+0.0 TO 102.5
Mounting Thread Quantity56 PER INCH
Coaxial Connector Series DesignationBNC
Mounting Facility Screw Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Attenuation Variation MethodSTEPPED
Body StyleCOAXIAL TYPE
Terminal Type and Quantity2 CONNECTOR, COAXIAL, FEMALE
Attenuation Per Step in Decibels0.5 AND 1.0
Mounting Facility Nominal Screw Thread Diameter2.000 INCHES IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.062 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length4.875 INCHES NOMINAL IN
Mounting Facility PatternFOUR POSITION RECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5960-00-134-6031 INTERCHANGEABLE
Electron Tube
5935-00-204-9285 INTERCHANGEABLE
Connector,receptacle,electrical
3439-01-046-0348447-A INTERCHANGEABLE
Electrode,welding
Hobart Bros Co
Cross-Reference Index
Part NumberManufacturer
447A PRIMARY Kay Elemetrics Corporation (USA)
Related Parts
5960-00-134-6031INTERCHANGEABLE
ELECTRON TUBE
5935-00-204-9285INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
3439-01-046-0348INTERCHANGEABLE
ELECTRODE,WELDING
447-A

Frequently Asked Questions

What is NSN 5985-00-275-5097?

NSN 5985-00-275-5097 is a Attenuator,variable, manufactured by Kay Elemetrics Corporation, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-275-5097?

NSN 5985-00-275-5097 has 1 cross-referenced part number: 447A (Kay Elemetrics Corporation).

What NSN replaces 5985-00-275-5097?

There are 3 known substitutes for 5985-00-275-5097: 5960-00-134-6031, 5935-00-204-9285, 3439-01-046-0348. Verify interchangeability with system specifications before substitution.

What are the specifications of 447A?

Key specifications for 447A: Application Design: TRANSMISSION LINE; Adjustment Device Type and Quantity: 9 KNOB; Frequency Range: 0.000 HERTZ MINIMUM AND 500.000 MEGAHERTZ MAXIMUM; Step Position Quantity: 9. 21 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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