PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40673-1Attenuator,variable

The Dewey Electronics Corporation · NSN 5985-00-432-7654 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-432-7654 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-432-7654. Primary manufacturer part number: 40673-1.
Features
  • Attenuator,variable — FSC 5985
  • Mounting Facility Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Shaft Type: ROUND
  • Terminal Type and Quantity: 16 TAB, SOLDER LUG
  • Mounting Facility Type and Quantity: 1 BRACKET(S) AND 2 THREADED HOLE(S)
  • Mounting Thread Quantity: 32 PER INCH
  • Mounting Facility Nominal Screw Thread Diameter: 0.164 INCHES IN
  • Distance Between Mounting Facility Centers: 2.125 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-432-7654, 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 The Dewey Electronics Corporation. Government technical data includes 19 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-432-7654
Primary Part Number40673-1
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerThe Dewey Electronics Corporation
StatusACTIVE
Mounting Facility Screw Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Shaft TypeROUND
Terminal Type and Quantity16 TAB, SOLDER LUG
Mounting Facility Type and Quantity1 BRACKET(S) AND 2 THREADED HOLE(S)
Mounting Thread Quantity32 PER INCH
Mounting Facility Nominal Screw Thread Diameter0.164 INCHES IN
Distance Between Mounting Facility Centers2.125 INCHES NOMINAL IN
Shaft Diameter0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
Body StyleCYLINDRICAL W/SIDE TERMINALS
Body Diameter2.750 INCHES NOMINAL IN
Mounting Facility PatternTWO POSITION IN-LINE
Step Position Quantity45
Operating Temp Range+0.0 TO 65.0 CELSIUS DEGC
Shaft Length0.500 INCHES NOMINAL IN
Attenuation Per Step in Decibels1.0
Overall Attenuation Range in Decibels+0.0 TO 45.0
Attenuation Variation MethodSTEPPED
Body Length6.438 INCHES MAXIMUM IN
Adjustment Device Type and Quantity1 SHAFT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4820-01-106-0823161 INTERCHANGEABLE
Guide,piston
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-108-3913165 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
1560-01-375-608540673-1 INTERCHANGEABLE
Door,access,aircraft
Fleet Readiness Center East Div Department of Navy
3010-01-441-633960498-00 INTERCHANGEABLE
Bellows,pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-442-449840673-101 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-442-45001563-00 INTERCHANGEABLE
Disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40673-1 PRIMARY The Dewey Electronics Corporation (USA)
Related Parts
4820-01-106-0823INTERCHANGEABLE
GUIDE,PISTON
161
4820-01-108-3913INTERCHANGEABLE
SEAT,VALVE
165
1560-01-375-6085INTERCHANGEABLE
DOOR,ACCESS,AIRCRAFT
40673-1
3010-01-441-6339INTERCHANGEABLE
BELLOWS,PRESSURE
60498-00
4820-01-442-4498INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40673-101
4820-01-442-4500INTERCHANGEABLE
DISK,VALVE
1563-00

Frequently Asked Questions

What is NSN 5985-00-432-7654?

NSN 5985-00-432-7654 is a Attenuator,variable, manufactured by The Dewey Electronics Corporation, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-432-7654?

NSN 5985-00-432-7654 has 1 cross-referenced part number: 40673-1 (The Dewey Electronics Corporation).

What NSN replaces 5985-00-432-7654?

There are 6 known substitutes for 5985-00-432-7654: 4820-01-106-0823, 4820-01-108-3913, 1560-01-375-6085 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40673-1?

Key specifications for 40673-1: Mounting Facility Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Shaft Type: ROUND; Terminal Type and Quantity: 16 TAB, SOLDER LUG; Mounting Facility Type and Quantity: 1 BRACKET(S) AND 2 THREADED HOLE(S). 22 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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