PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMC423298Attenuator,variable

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5985-00-034-0951 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-034-0951 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-034-0951. Primary manufacturer part number: SMC423298.
Features
  • Attenuator,variable — FSC 5985
  • Body Style: CYLINDRICAL W/SIDE TERMINALS
  • Shaft Length: 0.812 INCHES NOMINAL IN
  • Body Length: 1.880 INCHES NOMINAL IN
  • Mounting Facility Nominal Screw Thread Diameter: 0.375 INCHES IN
  • Mounting Facility Type and Quantity: 1 THREADED BUSHING
  • Frequency Range: 0.000 MEGAHERTZ MINIMUM AND 1.000 MEGAHERTZ MAXIMUM
  • Adjustment Device Type and Quantity: 1 SHAFT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-034-0951, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-034-0951
Primary Part NumberSMC423298
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Body StyleCYLINDRICAL W/SIDE TERMINALS
Shaft Length0.812 INCHES NOMINAL IN
Body Length1.880 INCHES NOMINAL IN
Mounting Facility Nominal Screw Thread Diameter0.375 INCHES IN
Mounting Facility Type and Quantity1 THREADED BUSHING
Frequency Range0.000 MEGAHERTZ MINIMUM AND 1.000 MEGAHERTZ MAXIMUM
Adjustment Device Type and Quantity1 SHAFT
Mounting Thread Quantity32 PER INCH
Overall Attenuation Accuracy in Decibels-0.50 TO 0.50
Application DesignAUDIO
Bushing Length0.360 INCHES NOMINAL IN
Overall Attenuation Range in Decibels+0.0 TO 12.0
First Flat Length0.312 INCHES NOMINAL IN
Impedance Rating in Ohms50.0 INPUT AND 580.0 OUTPUT
Mounting Facility Screw Thread Series DesignatorUNEF
Attenuation Per Step in Decibels1.0
Flat Height0.217 INCHES NOMINAL IN
Operating Temp Range-20.0 TO 160.0 FAHRENHEIT DEGF
Shaft Diameter0.500 INCHES NOMINAL IN
Schematic Diagram DesignatorUNBALANCED LADDER
Attenuation Variation MethodSTEPPED
Shaft TypeROUND, FLATTED
Body Diameter1.375 INCHES NOMINAL IN
Terminal Type and Quantity3 TAB, SOLDER LUG
Step Position Quantity13
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5950-00-007-7146986064-1 INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon
5999-00-245-72317907556-2 INTERCHANGEABLE
Clip,electrical
Us Army Aviation and Missile Command
5970-00-356-06059552 INTERCHANGEABLE
Insulator,feedthru
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
6145-01-127-77279552 INTERCHANGEABLE
Cable,power,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
5120-01-136-476628066 INTERCHANGEABLE
Wrench,valve Seat Ring
Leslie Controls, Inc. Dba Leslie Controls Inc
6515-01-295-7335 INTERCHANGEABLE
Cassette Injection Set
5340-01-499-9221 INTERCHANGEABLE
Bracket,mounting
5999-01-504-46809552 INTERCHANGEABLE
Cable,aircraft Equi
Testek Llc Dba Testek Solutions
Cross-Reference Index
Part NumberManufacturer
SMC423298 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
A.7268 Tech Logistics, Inc. (USA)
9552 Meggitt (new Hampshire), Inc (USA)
C-7268 Tech Logistics, Inc. (USA)
A.7268 Multi-Tech Industries Inc. (USA)
Related Parts
5950-00-007-7146INTERCHANGEABLE
REACTOR
986064-1
5999-00-245-7231INTERCHANGEABLE
CLIP,ELECTRICAL
7907556-2
5970-00-356-0605INTERCHANGEABLE
INSULATOR,FEEDTHRU
9552
6145-01-127-7727INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
9552
5120-01-136-4766INTERCHANGEABLE
WRENCH,VALVE SEAT RING
28066
6515-01-295-7335INTERCHANGEABLE
CASSETTE INJECTION SET
5340-01-499-9221INTERCHANGEABLE
BRACKET,MOUNTING
5999-01-504-4680INTERCHANGEABLE
CABLE,AIRCRAFT EQUI
9552

Frequently Asked Questions

What is NSN 5985-00-034-0951?

NSN 5985-00-034-0951 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 5985-00-034-0951?

NSN 5985-00-034-0951 has 5 cross-referenced part numbers: SMC423298 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), A.7268 (Tech Logistics, Inc.), 9552 (Meggitt (new Hampshire), Inc), C-7268 (Tech Logistics, Inc.), A.7268 (Multi-Tech Industries Inc.).

What NSN replaces 5985-00-034-0951?

There are 8 known substitutes for 5985-00-034-0951: 5950-00-007-7146, 5999-00-245-7231, 5970-00-356-0605 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SMC423298?

Key specifications for SMC423298: Body Style: CYLINDRICAL W/SIDE TERMINALS; Shaft Length: 0.812 INCHES NOMINAL IN; Body Length: 1.880 INCHES NOMINAL IN; Overall Width: 1.495 INCHES NOMINAL IN. 27 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com