PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8122AAttenuator,variable

Telonic Berkeley, Inc. Dba Telonic Berkeley · NSN 5985-01-004-3500 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-004-3500 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-004-3500. Primary manufacturer part number: 8122A.
Features
  • Attenuator,variable — FSC 5985
  • Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.2
  • Shaft Diameter: 0.250 INCHES NOMINAL IN
  • Attenuation Per Step in Decibels: 1.0
  • Terminal Type and Quantity: 2 PIN
  • Attenuation Variation Method: STEPPED
  • Step Position Quantity: 10
  • Power Rating: 3.0 WATTS AVERAGE AND 1.0 KILOWATTS PEAK
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-01-004-3500, 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 Telonic Berkeley, Inc. Dba Telonic Berkeley. Government technical data includes 14 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-004-3500
Primary Part Number8122A
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerTelonic Berkeley, Inc. Dba Telonic Berkeley
StatusACTIVE
Insertion Loss at Minimum Attenuation in Maximum Decibels0.2
Shaft Diameter0.250 INCHES NOMINAL IN
Attenuation Per Step in Decibels1.0
Terminal Type and Quantity2 PIN
Attenuation Variation MethodSTEPPED
Step Position Quantity10
Power Rating3.0 WATTS AVERAGE AND 1.0 KILOWATTS PEAK
Overall Attenuation Range in Decibels+0.0 TO 10.0
Frequency Range0.000 GIGAHERTZ MINIMUM AND 2.000 GIGAHERTZ MAXIMUM
Adjustment Device Type and Quantity1 SHAFT
Operating Temp Range-55.0 TO 85.0 CELSIUS DEGC
Impedance Rating in Ohms50.0 INPUT
Overall Attenuation Accuracy in Decibels-0.20 TO 3.00
Application DesignAUDIO
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6230-00-104-2888A265-1396A INTERCHANGEABLE
Floodlight,electric
Essex Electro Engineers Inc
2990-01-037-9172 INTERCHANGEABLE
Muffler,exhaust
Cross-Reference Index
Part NumberManufacturer
8122A PRIMARY Telonic Berkeley, Inc. Dba Telonic Berkeley (USA)
Related Parts
6230-00-104-2888INTERCHANGEABLE
FLOODLIGHT,ELECTRIC
A265-1396A
2990-01-037-9172INTERCHANGEABLE
MUFFLER,EXHAUST

Frequently Asked Questions

What is NSN 5985-01-004-3500?

NSN 5985-01-004-3500 is a Attenuator,variable, manufactured by Telonic Berkeley, Inc. Dba Telonic Berkeley, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-004-3500?

NSN 5985-01-004-3500 has 1 cross-referenced part number: 8122A (Telonic Berkeley, Inc. Dba Telonic Berkeley).

What NSN replaces 5985-01-004-3500?

There are 2 known substitutes for 5985-01-004-3500: 6230-00-104-2888, 2990-01-037-9172. Verify interchangeability with system specifications before substitution.

What are the specifications of 8122A?

Key specifications for 8122A: Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.2; Shaft Diameter: 0.250 INCHES NOMINAL IN; Attenuation Per Step in Decibels: 1.0; Terminal Type and Quantity: 2 PIN. 14 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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