The Synchro,receiver, cataloged under National Stock Number 5990-00-504-8290, 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 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5990-00-504-8290 |
| Primary Part Number | SK39759 |
| Item Name | Synchro,receiver |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Body Size | 23 |
| Shaft Type | ROUND, THREADED SINGLE SHAFT |
| Flange Diameter | 2.2500 INCHES NOMINAL IN |
| Shaft Diameter | 0.1820 INCHES NOMINAL SINGLE SHAFT IN |
| Torque Gradient Per Angular Deg | 0.100 INCH-OUNCES NOMINAL IN |
| Rotor Input Electrical Power Rating | 3.5 WATTS NOMINAL |
| Shaft Thread Length | 0.1500 INCHES NOMINAL SINGLE SHAFT IN |
| Frequency in Hertz | 60.0 NOMINAL |
| Rotor Input Voltage Rating in Volts | 115.0 NOMINAL |
| Shaft Length | 0.2600 INCHES NOMINAL SINGLE SHAFT IN |
| Shaft Nominal Thread Size | 0.112 INCHES SINGLE SHAFT IN |
| Transformation Ratio | 0.783 ROTOR TO STATOR NOMINAL |
| Shaft Thread Series Designator | UNF SINGLE SHAFT |
| Rotor Input Current Rating | 200.0 MILLIAMPERES NOMINAL |
| Terminal Type and Quantity | 5 SCREW |
| Shaft Thread Class | 2A SINGLE SHAFT A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SK39759 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 212871PC1 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 212871-1 | 3/9 Design control — primary reference Arma Div Ambac Industries Inc |
NSN 5990-00-504-8290 is a Synchro,receiver, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-504-8290 has 2 manufacturer part numbers on file: SK39759 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 212871PC1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-384-6316. Verify interchangeability with system specifications before substitution.
Key specifications for SK39759: Body Size: 23; Shaft Type: ROUND, THREADED SINGLE SHAFT; Flange Diameter: 2.2500 INCHES NOMINAL IN; Shaft Diameter: 0.1820 INCHES NOMINAL SINGLE SHAFT IN. 16 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.
NSN 5990-00-504-8290 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.