PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4186800-016Synchro,transmitter

Raytheon Company Dba Raytheon · NSN 5990-00-677-6495 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-677-6495 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-677-6495. Primary manufacturer part number: 4186800-016.
Features
  • Synchro,transmitter — FSC 5990
  • Body Style: STANDARD ROUND D
  • Second Shoulder Diameter: 1.9995 INCHES NOMINAL IN
  • Shoulder Diameter: 1.9900 INCHES NOMINAL IN
  • Pilot Diameter: 0.5950 INCHES NOMINAL IN
  • Flange Diameter: 2.2500 INCHES NOMINAL IN
  • Flange Thickness: 0.2500 INCHES NOMINAL IN
  • Body Diameter: 1.9900 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Synchro,transmitter, cataloged under National Stock Number 5990-00-677-6495, is classified within Federal Supply Class 5990 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Raytheon Company Dba Raytheon. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5990-00-677-6495
Primary Part Number4186800-016
Item NameSynchro,transmitter
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Body StyleSTANDARD ROUND D
Second Shoulder Diameter1.9995 INCHES NOMINAL IN
Shoulder Diameter1.9900 INCHES NOMINAL IN
Pilot Diameter0.5950 INCHES NOMINAL IN
Flange Diameter2.2500 INCHES NOMINAL IN
Flange Thickness0.2500 INCHES NOMINAL IN
Body Diameter1.9900 INCHES NOMINAL IN
Second Shoulder Length0.1700 INCHES NOMINAL IN
Shaft TypeSPLINE W/THREADS SINGLE SHAFT
Shaft Thread Series DesignatorUNF SINGLE SHAFT
Maximum Total Null Voltage Output in Millivolts Per Volt60.00
Length0.2500 INCHES NOMINAL SHOULDER IN
Zss Impedance Angle in Deg10.00 MINIMUM AND 15.00 MAXIMUM
Spline Tooth Quantity22 SINGLE SHAFT
Phase Shift Angle in Deg6.500 INPUT TO OUTPUT NOMINAL
Terminal LocationREAR
Shaft Thread DirectionRIGHT-HAND SINGLE SHAFT
Shaft Thread Length0.2910 INCHES MINIMUM SINGLE SHAFT IN
Plus J Zss Reactance in Ohms26.90 MINIMUM AND 80.15 MAXIMUM
Zss Impedance Magnitude in Ohms155.00 MINIMUM AND 310.00 MAXIMUM
Alignment Hole Quantity4
Mounting Surface to Terminal End Distance3.6230 INCHES NOMINAL IN
Actuator Friction Torque at Plus 25 Deg Celsius0.20 INCH-OUNCES MAXIMUM IN
Maximum Fundamental Null Voltage in Millivolts Per Volt30.00 OUTPUT
Rotor Input Voltage Rating in Volts115.0 NOMINAL
Plus J Zro Reactance in Ohms1419.00 MINIMUM AND 1690.00 MAXIMUM
Plus J Zrs Reactance in Ohms1419.00 MINIMUM AND 1690.00 MAXIMUM
Shaft Nominal Thread Size0.250 INCHES SINGLE SHAFT IN
Rotor Input Electrical Power Rating1.6 WATTS NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5990-00-852-2363M20708/52-01D INTERCHANGEABLE
Synchro,transmitter
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
4186800-016 Raytheon Company Dba Raytheon (USA)
23CX6C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILS20708-52 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4186800-016 Raytheon Company Div Rmd Strategic (USA)
Related Parts
5990-00-852-2363INTERCHANGEABLE
SYNCHRO,TRANSMITTER
M20708/52-01D

Frequently Asked Questions

What is NSN 5990-00-677-6495?

NSN 5990-00-677-6495 is a Synchro,transmitter, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5990 (No Item Name Available). Status: active.

What are the part numbers for NSN 5990-00-677-6495?

NSN 5990-00-677-6495 has 4 cross-referenced part numbers: 4186800-016 (Raytheon Company Dba Raytheon), 23CX6C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILS20708-52 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4186800-016 (Raytheon Company Div Rmd Strategic).

What NSN replaces 5990-00-677-6495?

There is 1 known substitute for 5990-00-677-6495: 5990-00-852-2363. Verify interchangeability with system specifications before substitution.

What are the specifications of 4186800-016?

Key specifications for 4186800-016: Body Style: STANDARD ROUND D; Second Shoulder Diameter: 1.9995 INCHES NOMINAL IN; Shoulder Diameter: 1.9900 INCHES NOMINAL IN; Pilot Diameter: 0.5950 INCHES NOMINAL IN. 30 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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