PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RS911-4ASynchro,transmitter

Kearfott Corporation Div Guidance and Navigation Division · NSN 5990-00-583-3701 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-583-3701 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-583-3701. Primary manufacturer part number: RS911-4A.
Features
  • Synchro,transmitter — FSC 5990
  • Undercut Width: 0.0500 INCHES NOMINAL IN
  • Flange Thickness: 0.0930 INCHES NOMINAL IN
  • Flange Diameter: 1.0570 INCHES MINIMUM AND 1.0650 INCHES MAXIMUM IN
  • Shoulder Diameter: 0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
  • Pilot Diameter: 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
  • Body Style: STANDARD ROUND C
  • Undercut Diameter: 0.9750 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 5990-00-583-3701, 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 Kearfott Corporation Div Guidance and Navigation Division. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5990-00-583-3701
Primary Part NumberRS911-4A
Item NameSynchro,transmitter
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerKearfott Corporation Div Guidance and Navigation Division
StatusCANCELLED
Undercut Width0.0500 INCHES NOMINAL IN
Flange Thickness0.0930 INCHES NOMINAL IN
Flange Diameter1.0570 INCHES MINIMUM AND 1.0650 INCHES MAXIMUM IN
Shoulder Diameter0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
Pilot Diameter0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
Body StyleSTANDARD ROUND C
Undercut Diameter0.9750 INCHES NOMINAL IN
Zro Impedance Magnitude in Ohms359.00 NOMINAL
Maximum Total Null Voltage Output in Millivolts Per Volt26.00
Stator DC Resistance in Ohms10.50 NOMINAL
Shaft Length0.3740 INCHES NOMINAL SINGLE SHAFT IN
Fragility FactorMODERATELY RUGGED
Transformation Ratio0.454 ROTOR TO STATOR NOMINAL
Rotor Input Current Rating90.0 MILLIAMPERES MAXIMUM
Zso Impedance Magnitude in Ohms60.00 NOMINAL
Maximum Temp Rise15.0 CELSIUS DEGC
Phase Shift Angle in Deg4.700 INPUT TO OUTPUT NOMINAL
Rotor Input Voltage Rating in Volts26.0 NOMINAL
Frequency in Hertz400.0 NOMINAL
Zso Impedance Angle in Deg78.50 NOMINAL
Rotor Input Electrical Power Rating300.0 MILLIWATTS NOMINAL
Terminal Type and Quantity5 WIRE LEAD
Shaft TypeROUND, SLOTTED SINGLE SHAFT
Length0.0620 INCHES NOMINAL SHOULDER IN
Body MaterialALUMINUM
Body Size11
Pilot Length0.0620 INCHES NOMINAL IN
Shaft Slot Depth0.0300 INCHES NOMINAL SINGLE SHAFT IN
Maximum Fundamental Null Voltage in Millivolts Per Volt17.00 OUTPUT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5330-00-054-775318008 INTERCHANGEABLE
Gasket
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5133-00-189-9253 INTERCHANGEABLE
Drill,twist
4730-00-202-650418008 INTERCHANGEABLE
Clamp,hose
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
3455-00-239-560118008 INTERCHANGEABLE
Cutter,milling,involute Gear
Precision Industries Inc Sharpaloy Div
2610-00-733-1930 INTERCHANGEABLE
Tire,pneumatic,vehicular
3120-00-988-1705 INTERCHANGEABLE
Bearing,sleeve
2610-00-999-3900RTR171F INTERCHANGEABLE
Tire,pneumatic,vehicular
Titan Tire Corporation
3040-01-194-01941800-8 INTERCHANGEABLE
Hub
Ametek Inc Schutte and Koerting Div
2610-01-392-1401 INTERCHANGEABLE
Inner Tube,pneumatic Tire,vehicu
5340-01-415-886318002 INTERCHANGEABLE
Plug,vent
Sexton & Peake Inc
Cross-Reference Index
Part NumberManufacturer
18008 Cessna Aircraft Co Arc Avionics Div (USA)
RS911-4A Kearfott Corp Div Kearfott Corporation (USA)
RS911-4A PRIMARY Kearfott Corporation Div Guidance and Navigation Division (USA)
602274-6 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5330-00-054-7753INTERCHANGEABLE
GASKET
18008
5133-00-189-9253INTERCHANGEABLE
DRILL,TWIST
4730-00-202-6504INTERCHANGEABLE
CLAMP,HOSE
18008
3455-00-239-5601INTERCHANGEABLE
CUTTER,MILLING,INVOLUTE GEAR
18008
2610-00-733-1930INTERCHANGEABLE
TIRE,PNEUMATIC,VEHICULAR
3120-00-988-1705INTERCHANGEABLE
BEARING,SLEEVE
2610-00-999-3900INTERCHANGEABLE
TIRE,PNEUMATIC,VEHICULAR
RTR171F
3040-01-194-0194INTERCHANGEABLE
HUB
1800-8
2610-01-392-1401INTERCHANGEABLE
INNER TUBE,PNEUMATIC TIRE,VEHICU
5340-01-415-8863INTERCHANGEABLE
PLUG,VENT
18002
5935-01-529-6075INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5306-01-674-4194INTERCHANGEABLE
BOLT,MACHINE
18008

Frequently Asked Questions

What is NSN 5990-00-583-3701?

NSN 5990-00-583-3701 is a Synchro,transmitter, manufactured by Kearfott Corporation Div Guidance and Navigation Division, classified under FSC 5990 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5990-00-583-3701?

NSN 5990-00-583-3701 has 4 cross-referenced part numbers: 18008 (Cessna Aircraft Co Arc Avionics Div), RS911-4A (Kearfott Corp Div Kearfott Corporation), RS911-4A (Kearfott Corporation Div Guidance and Navigation Division), 602274-6 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5990-00-583-3701?

There are 12 known substitutes for 5990-00-583-3701: 5330-00-054-7753, 5133-00-189-9253, 4730-00-202-6504 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RS911-4A?

Key specifications for RS911-4A: Undercut Width: 0.0500 INCHES NOMINAL IN; Overall Length: 2.1700 INCHES NOMINAL IN; Flange Thickness: 0.0930 INCHES NOMINAL IN; Flange Diameter: 1.0570 INCHES MINIMUM AND 1.0650 INCHES MAXIMUM IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5990-00-583-3701 still in active supply?

NSN 5990-00-583-3701 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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