The Synchro,differential Transmitter, cataloged under National Stock Number 5990-00-503-4102, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-503-4102 |
| Primary Part Number | 499500 |
| Item Name | Synchro,differential Transmitter |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Body Size | 34 |
| Fragility Factor | MODERATELY RUGGED |
| Torque Gradient Per Angular Deg | 0.220 INCH-OUNCES NOMINAL IN |
| Stator Input Current Rating | 200.0 MILLIAMPERES NOMINAL |
| Frequency in Hertz | 60.0 NOMINAL |
| Stator Input Electrical Power Rating | 2.0 WATTS NOMINAL |
| Stator Input Voltage Rating in Volts | 100.0 NOMINAL |
| Transformation Ratio | 1.000 STATOR TO ROTOR NOMINAL |
| Terminal Type and Quantity | 6 SCREW |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5990-00-503-4102 is a Synchro,differential Transmitter, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-503-4102 has 2 manufacturer part numbers on file: 499500 (Polytech Defense Spares Llc), 499500 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 5340-00-794-7360. Verify interchangeability with system specifications before substitution.
Key specifications for 499500: Body Size: 34; Fragility Factor: MODERATELY RUGGED; Torque Gradient Per Angular Deg: 0.220 INCH-OUNCES NOMINAL IN; Stator Input Current Rating: 200.0 MILLIAMPERES NOMINAL. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.