The Synchro,receiver, cataloged under National Stock Number 5990-00-137-3971, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5990-00-137-3971 |
| Item Name | Synchro,receiver |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 28 |
| Shaft Type | ROUND SINGLE SHAFT |
| Body Diameter | 2.7500 INCHES NOMINAL IN |
| Flange Diameter | 2.8000 INCHES NOMINAL IN |
| Second Shoulder Face to Rear Flange Distance | 0.7750 INCHES NOMINAL IN |
| Shaft Diameter | 0.2500 INCHES NOMINAL SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 12.50 NOMINAL |
| Length | 0.1320 INCHES NOMINAL SHOULDER IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND, REAR MOUNTING FLANGE |
| Flange Thickness | 0.0930 INCHES NOMINAL IN |
| Rotor Input Electrical Power Rating | 500.0 MILLIWATTS MAXIMUM |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 220.00 NOMINAL |
| Terminal Location | REAR |
| Rotor Input Voltage Rating in Volts | 26.0 NOMINAL |
| Shaft Length | 1.1250 INCHES NOMINAL SINGLE SHAFT IN |
| Body Material | STEEL CORROSION RESISTING |
| Pilot Diameter | 0.5000 INCHES NOMINAL IN |
| Second Shoulder Length | 0.0250 INCHES NOMINAL IN |
| Shoulder Diameter | 0.7500 INCHES NOMINAL IN |
| Plus J Zro Reactance in Ohms | 88.00 NOMINAL |
| Pilot Length | 0.1560 INCHES NOMINAL IN |
| Electrical Error Angular Range in Minutes | -40.0 TO 40.0 |
| Rotor Input Current Rating | 220.0 MILLIAMPERES MAXIMUM |
| Terminal Type and Quantity | 5 WIRE LEAD |
| Second Shoulder Diameter | 1.0000 INCHES NOMINAL IN |
| Stator DC Resistance in Ohms | 4.70 NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| URH-10-RNE-4/F010 | 3/9 Design control — primary reference Moog Inc. |
| URH-10-RNE-4/F010 | 3/2 Design control — primary reference U.S. Government activity |
| 18-2000-02 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5990-00-137-3971 is a Synchro,receiver, classified under FSC 5990, Synchros and Resolvers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-564-8438. Verify interchangeability with system specifications before substitution.
Key specifications for 5990-00-137-3971: Body Size: 28; Shaft Type: ROUND SINGLE SHAFT; Body Diameter: 2.7500 INCHES NOMINAL IN; Flange Diameter: 2.8000 INCHES NOMINAL IN. 28 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 5990-00-137-3971 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.