PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

656520Transmitter,induction Compass

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 6605-00-569-9404 · FSC 6605 · No Item Name Available
Verified by PartsTable
NSN 6605-00-569-9404 — this item is cataloged by the U.S. Government under National Stock Number 6605-00-569-9404. Primary manufacturer part number: 656520.
Features
  • Transmitter,induction Compass — FSC 6605
  • Transmitting Coil Voltage in Volts: 24.0 NOMINAL
  • Mounting Method: STUD(S)
  • Gyro Current Type: AC
  • Gyro Voltage in Volts: 24.0 NOMINAL
  • Transmitting Coil Frequency in Hertz: 400.0 NOMINAL
  • Direction Sensing Element Type: PIVOTED, PERMANENT MAGNET
  • Gyro Frequency in Hertz: 400.0 NOMINAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transmitter,induction Compass, cataloged under National Stock Number 6605-00-569-9404, is classified within Federal Supply Class 6605 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6605-00-569-9404
Primary Part Number656520
Item NameTransmitter,induction Compass
FSC / FSG6605 / 66 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusCANCELLED
Transmitting Coil Voltage in Volts24.0 NOMINAL
Mounting MethodSTUD(S)
Gyro Current TypeAC
Gyro Voltage in Volts24.0 NOMINAL
Transmitting Coil Frequency in Hertz400.0 NOMINAL
Direction Sensing Element TypePIVOTED, PERMANENT MAGNET
Gyro Frequency in Hertz400.0 NOMINAL
Overall Diameter4.781 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
3110-00-555-523813090444 INTERCHANGEABLE
Bearing,ball,annular
Champion Road Machinery Inc Pro-Pav Div
5330-01-137-6741 INTERCHANGEABLE
Seal
3990-01-418-1732PAK210-WD INTERCHANGEABLE
Pallet,material Stacking
New Pig Corporation
Cross-Reference Index
Part NumberManufacturer
656520 Sperry Corp (USA)
SM-D-493453 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
T611ASN Joint Electronics Type Designation System (USA)
656520 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
28258 Raytheon Company Dba Raytheon (USA)
Related Parts
3110-00-555-5238INTERCHANGEABLE
BEARING,BALL,ANNULAR
13090444
5330-01-137-6741INTERCHANGEABLE
SEAL
3990-01-418-1732INTERCHANGEABLE
PALLET,MATERIAL STACKING
PAK210-WD

Frequently Asked Questions

What is NSN 6605-00-569-9404?

NSN 6605-00-569-9404 is a Transmitter,induction Compass, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 6605 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6605-00-569-9404?

NSN 6605-00-569-9404 has 5 cross-referenced part numbers: 656520 (Sperry Corp), SM-D-493453 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), T611ASN (Joint Electronics Type Designation System), 656520 (Lockheed Martin Corporation Div Rms - Mitchel Field), 28258 (Raytheon Company Dba Raytheon).

What NSN replaces 6605-00-569-9404?

There are 3 known substitutes for 6605-00-569-9404: 3110-00-555-5238, 5330-01-137-6741, 3990-01-418-1732. Verify interchangeability with system specifications before substitution.

What are the specifications of 656520?

Key specifications for 656520: Transmitting Coil Voltage in Volts: 24.0 NOMINAL; Mounting Method: STUD(S); Gyro Current Type: AC; Gyro Voltage in Volts: 24.0 NOMINAL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6605-00-569-9404 still in active supply?

NSN 6605-00-569-9404 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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