PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

94021Synchro,transmitter

Arma Div Ambac Industries Inc · NSN 5990-00-503-0039 · FSC 5990 · No Item Name Available
Verified by PartsTable
NSN 5990-00-503-0039 — this item is cataloged by the U.S. Government under National Stock Number 5990-00-503-0039. Primary manufacturer part number: 94021.
Features
  • Synchro,transmitter — FSC 5990
  • Flange Diameter: 1.4370 INCHES NOMINAL IN
  • Torque Gradient Per Angular Deg: 0.005 INCH-OUNCES NOMINAL IN
  • Rotor Input Current Rating: 320.0 MILLIAMPERES NOMINAL
  • Shaft Type: ROUND SINGLE SHAFT
  • Terminal Type and Quantity: 5 WIRE LEAD
  • Rotor Input Electrical Power Rating: 1.2 WATTS NOMINAL
  • Body Size: 15
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Synchro,transmitter, cataloged under National Stock Number 5990-00-503-0039, 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 Arma Div Ambac Industries Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5990-00-503-0039
Primary Part Number94021
Item NameSynchro,transmitter
FSC / FSG5990 / 59 — No Item Name Available
ManufacturerArma Div Ambac Industries Inc
StatusACTIVE
Flange Diameter1.4370 INCHES NOMINAL IN
Torque Gradient Per Angular Deg0.005 INCH-OUNCES NOMINAL IN
Rotor Input Current Rating320.0 MILLIAMPERES NOMINAL
Shaft TypeROUND SINGLE SHAFT
Terminal Type and Quantity5 WIRE LEAD
Rotor Input Electrical Power Rating1.2 WATTS NOMINAL
Body Size15
Rotor Input Voltage Rating in Volts26.0 NOMINAL
Shaft Diameter0.1200 INCHES NOMINAL SINGLE SHAFT IN
Frequency in Hertz400.0 NOMINAL
Transformation Ratio0.450 ROTOR TO STATOR NOMINAL
Shaft Length0.4380 INCHES NOMINAL SINGLE SHAFT IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5915-00-500-99922920137-21 INTERCHANGEABLE
Filter,band Pass
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-655-9969 INTERCHANGEABLE
Washer,spring Tension
4320-01-115-381594021 INTERCHANGEABLE
Pump
United States Plastic Corp
5910-01-239-7509 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
4920-01-300-200294021 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
5330-01-316-2542940-21 INTERCHANGEABLE
Ring,wiper
Liftking Manufacturing Corp
5340-01-394-8859 INTERCHANGEABLE
Cover,access
5360-01-599-618994021 INTERCHANGEABLE
Spring,helical,compression
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
94021 Arma Div Ambac Industries Inc
Related Parts
5915-00-500-9992INTERCHANGEABLE
FILTER,BAND PASS
2920137-21
5310-00-655-9969INTERCHANGEABLE
WASHER,SPRING TENSION
4320-01-115-3815INTERCHANGEABLE
PUMP
94021
5910-01-239-7509INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
4920-01-300-2002INTERCHANGEABLE
TEST PROGRAM SET
94021
5330-01-316-2542INTERCHANGEABLE
RING,WIPER
940-21
5340-01-394-8859INTERCHANGEABLE
COVER,ACCESS
5360-01-599-6189INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
94021

Frequently Asked Questions

What is NSN 5990-00-503-0039?

NSN 5990-00-503-0039 is a Synchro,transmitter, manufactured by Arma Div Ambac Industries Inc, classified under FSC 5990 (No Item Name Available). Status: active.

What are the part numbers for NSN 5990-00-503-0039?

NSN 5990-00-503-0039 has 1 cross-referenced part number: 94021 (Arma Div Ambac Industries Inc).

What NSN replaces 5990-00-503-0039?

There are 8 known substitutes for 5990-00-503-0039: 5915-00-500-9992, 5310-00-655-9969, 4320-01-115-3815 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 94021?

Key specifications for 94021: Flange Diameter: 1.4370 INCHES NOMINAL IN; Torque Gradient Per Angular Deg: 0.005 INCH-OUNCES NOMINAL IN; Rotor Input Current Rating: 320.0 MILLIAMPERES NOMINAL; Shaft Type: ROUND SINGLE SHAFT. 13 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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