PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A81-86Amplifier,audio Frequency

Andrea Systems Llc · NSN 5996-00-880-3563 · FSC 5996 · Amplifier,radio Frequency
Verified by PartsTable
NSN 5996-00-880-3563 — this item is cataloged by the U.S. Government under National Stock Number 5996-00-880-3563. Primary manufacturer part number: A81-86.
Features
  • Amplifier,audio Frequency — FSC 5996
  • Frequency Per Channel: 300.0 HERTZ MINIMUM OPERATING CHANNEL AND 6.0 KILOHERTZ MAXIMUM OPERATING CHANNEL
  • External DC Operating Voltage in Volts: 17.0 MINIMUM SINGLE VOLTAGE AND 29.0 MAXIMUM SINGLE VOLTAGE
  • Impedance Rating Per Channel: 500.000 OHMS INPUT CHANNEL AND 5.000 OHMS OUTPUT CHANNEL
  • Average Power Rating Per Channel: 1.0 WATTS OUTPUT
  • Variation Frequency Rating in Decibels: 6.0
  • Basic Shape Style: RECTANGULAR OR SQUARE
  • 7 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 5996-00-880-3563, 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 7 commercial cross-references from 4 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
NSN5996-00-880-3563
Primary Part NumberA81-86
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
External DC Operating Voltage in Volts17.0 MINIMUM SINGLE VOLTAGE AND 29.0 MAXIMUM SINGLE VOLTAGE
Impedance Rating Per Channel500.000 OHMS INPUT CHANNEL AND 5.000 OHMS OUTPUT CHANNEL
Average Power Rating Per Channel1.0 WATTS OUTPUT
Variation Frequency Rating in Decibels6.0
Basic Shape StyleRECTANGULAR OR SQUARE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
4320-00-105-0241A8110-27S INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Curtiss-Wright Electro-Mechanical Corporation Div Epd
4410-00-346-1825 INTERCHANGEABLE
Photocell and Body
5950-00-408-9576SM-A-701746 INTERCHANGEABLE
Coil,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4930-01-169-7676 INTERCHANGEABLE
Eliminator Assembly,air
5975-01-546-6192 INTERCHANGEABLE
Bushing,electrical Conduit
3110-01-645-3174A8186 INTERCHANGEABLE
Bearing,ball,thrust
Thern Inc
Cross-Reference Index
Part NumberManufacturer
A81-86 Andrea Electronics Corporation (USA)
A81-10 Andrea Electronics Corporation (USA)
AM4346AIC25 Joint Electronics Type Designation System (USA)
A81-51 Andrea Systems Llc (USA)
A81-86 PRIMARY Andrea Systems Llc (USA)
A81-86 S I T Corporation (USA)
A81-51 Andrea Electronics Corporation (USA)
Related Parts
4320-00-105-0241INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
A8110-27S
4410-00-346-1825INTERCHANGEABLE
PHOTOCELL AND BODY
5950-00-408-9576INTERCHANGEABLE
COIL,RADIO FREQUENCY
SM-A-701746
4930-01-169-7676INTERCHANGEABLE
ELIMINATOR ASSEMBLY,AIR
5975-01-546-6192INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
3110-01-645-3174INTERCHANGEABLE
BEARING,BALL,THRUST
A8186

Frequently Asked Questions

What is NSN 5996-00-880-3563?

NSN 5996-00-880-3563 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 5996-00-880-3563?

NSN 5996-00-880-3563 has 7 cross-referenced part numbers: A81-86 (Andrea Electronics Corporation), A81-10 (Andrea Electronics Corporation), AM4346AIC25 (Joint Electronics Type Designation System), A81-51 (Andrea Systems Llc), A81-86 (Andrea Systems Llc) and 2 more.

What NSN replaces 5996-00-880-3563?

There are 6 known substitutes for 5996-00-880-3563: 4320-00-105-0241, 4410-00-346-1825, 5950-00-408-9576 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A81-86?

Key specifications for A81-86: Frequency Per Channel: 300.0 HERTZ MINIMUM OPERATING CHANNEL AND 6.0 KILOHERTZ MAXIMUM OPERATING CHANNEL; External DC Operating Voltage in Volts: 17.0 MINIMUM SINGLE VOLTAGE AND 29.0 MAXIMUM SINGLE VOLTAGE; Impedance Rating Per Channel: 500.000 OHMS INPUT CHANNEL AND 5.000 OHMS OUTPUT CHANNEL; Average Power Rating Per Channel: 1.0 WATTS OUTPUT. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5996-00-880-3563 still in active supply?

NSN 5996-00-880-3563 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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