PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A81-85Amplifier,audio Frequency

Andrea Systems Llc · NSN 5996-00-880-3562 · FSC 5996 · Amplifier,radio Frequency
Verified by PartsTable
NSN 5996-00-880-3562 — this item is cataloged by the U.S. Government under National Stock Number 5996-00-880-3562. Primary manufacturer part number: A81-85.
Features
  • Amplifier,audio Frequency — FSC 5996
  • Frequency Per Channel: 300.0 HERTZ MINIMUM OPERATING CHANNEL AND 6.0 KILOHERTZ MAXIMUM OPERATING CHANNEL
  • Impedance Rating Per Channel: 15.000 OHMS INPUT CHANNEL AND 50.000 OHMS OUTPUT CHANNEL
  • External DC Operating Voltage in Volts: 17.0 MINIMUM SINGLE VOLTAGE AND 29.0 MAXIMUM SINGLE VOLTAGE
  • Variation Frequency Rating in Decibels: 6.0
  • Average Power Rating Per Channel: 26.0 MILLIWATTS OUTPUT
  • Basic Shape Style: RECTANGULAR OR SQUARE
  • 8 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Amplifier,audio Frequency, cataloged under National Stock Number 5996-00-880-3562, is classified within Federal Supply Class 5996 (Amplifier,radio Frequency) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Andrea Systems Llc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5996-00-880-3562
Primary Part NumberA81-85
Item NameAmplifier,audio Frequency
FSC / FSG5996 / 59 — Amplifier,radio Frequency
ManufacturerAndrea Systems Llc
StatusCANCELLED
Frequency Per Channel300.0 HERTZ MINIMUM OPERATING CHANNEL AND 6.0 KILOHERTZ MAXIMUM OPERATING CHANNEL
Impedance Rating Per Channel15.000 OHMS INPUT CHANNEL AND 50.000 OHMS OUTPUT CHANNEL
External DC Operating Voltage in Volts17.0 MINIMUM SINGLE VOLTAGE AND 29.0 MAXIMUM SINGLE VOLTAGE
Variation Frequency Rating in Decibels6.0
Average Power Rating Per Channel26.0 MILLIWATTS OUTPUT
Basic Shape StyleRECTANGULAR OR SQUARE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5975-00-089-8398SM-D-620326 INTERCHANGEABLE
Mounting Base,electrical Equipme
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3110-00-100-02740043008 INTERCHANGEABLE
Cone and Rollers,tapered Roller
New Holland Construction
5905-00-110-0196 INTERCHANGEABLE
Resistor,fixed,composition
5340-00-224-7948BHMA-A156.1 A8133 3-1/2IN INTERCHANGEABLE
Hinge,butt
Builders Hardware Mfrs Assn Inc
5340-00-550-2535A8133 INTERCHANGEABLE
Hinge,butt
American National Standards Institute Incorporated Dba American National Standards Institute
3120-00-651-7288S1510-24492 INTERCHANGEABLE
Bushing,sleeve
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Cross-Reference Index
Part NumberManufacturer
AM-1964/AIC-18 Joint Electronics Type Designation System (USA)
A81-85 Andrea Electronics Corporation (USA)
A81-33 Andrea Electronics Corporation (USA)
A81-85 PRIMARY Andrea Systems Llc (USA)
AM4347A1C25 Joint Electronics Type Designation System (USA)
M1646-04 Melcor Electronics Corp (USA)
A81-50 Andrea Electronics Corporation (USA)
C7288 Teledyne Peer Teledyne Inc Company (USA)
Related Parts
5975-00-089-8398INTERCHANGEABLE
MOUNTING BASE,ELECTRICAL EQUIPME
SM-D-620326
3110-00-100-0274INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
0043008
5905-00-110-0196INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5340-00-224-7948INTERCHANGEABLE
HINGE,BUTT
BHMA-A156.1 A8133 3-1/2IN
5340-00-550-2535INTERCHANGEABLE
HINGE,BUTT
A8133
3120-00-651-7288INTERCHANGEABLE
BUSHING,SLEEVE
S1510-24492

Frequently Asked Questions

What is NSN 5996-00-880-3562?

NSN 5996-00-880-3562 is a Amplifier,audio Frequency, manufactured by Andrea Systems Llc, classified under FSC 5996 (Amplifier,radio Frequency). Status: cancelled.

What are the part numbers for NSN 5996-00-880-3562?

NSN 5996-00-880-3562 has 8 cross-referenced part numbers: AM-1964/AIC-18 (Joint Electronics Type Designation System), A81-85 (Andrea Electronics Corporation), A81-33 (Andrea Electronics Corporation), A81-85 (Andrea Systems Llc), AM4347A1C25 (Joint Electronics Type Designation System) and 3 more.

What NSN replaces 5996-00-880-3562?

There are 6 known substitutes for 5996-00-880-3562: 5975-00-089-8398, 3110-00-100-0274, 5905-00-110-0196 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A81-85?

Key specifications for A81-85: Overall Width: 2.500 INCHES NOMINAL IN; Overall Length: 3.500 INCHES NOMINAL IN; Frequency Per Channel: 300.0 HERTZ MINIMUM OPERATING CHANNEL AND 6.0 KILOHERTZ MAXIMUM OPERATING CHANNEL; Impedance Rating Per Channel: 15.000 OHMS INPUT CHANNEL AND 50.000 OHMS OUTPUT CHANNEL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5996-00-880-3562 still in active supply?

NSN 5996-00-880-3562 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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