The Synchro,receiver, cataloged under National Stock Number 5990-00-583-9735, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-583-9735 |
| Primary Part Number | 66-315 |
| Item Name | Synchro,receiver |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Body Size | 8 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 0.7490 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Undercut Width | 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN |
| Shaft Diameter | 0.0880 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 37.00 NOMINAL |
| Undercut Diameter | 0.6880 INCHES MINIMUM AND 0.6910 INCHES MAXIMUM IN |
| Body Style | STANDARD ROUND A |
| Flange Thickness | 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN |
| Rotor Input Electrical Power Rating | 630.0 MILLIWATTS NOMINAL |
| Phase Shift Angle in Deg | 8.000 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 1.2410 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 54.00 NOMINAL |
| Plus J Zso Reactance in Ohms | 3.50 NOMINAL |
| Terminal Location | REAR |
| Rotor Input Voltage Rating in Volts | 26.0 NOMINAL |
| Shaft Length | 0.3550 INCHES MINIMUM AND 0.3950 INCHES MAXIMUM SINGLE SHAFT IN |
| Body Material | STEEL CORROSION RESISTING |
| Pilot Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Shaft Slot Width | 0.0470 INCHES NOMINAL SINGLE SHAFT IN |
| Plus J Zro Reactance in Ohms | 260.00 NOMINAL |
| Pilot Length | 0.0380 INCHES MINIMUM AND 0.0480 INCHES MAXIMUM IN |
| Zso Resistance in Ohms | 15.00 NOMINAL |
| Actuator Friction Torque at Plus 25 Deg Celsius | 2700.00 MILLIMETER-MILLIGRAMS NOMINAL MM |
| Rotor Input Current Rating | 105.0 MILLIAMPERES NOMINAL |
| Actuator Friction Torque at Minus 55 Deg Celsius | 5400.00 MILLIMETER-MILLIGRAMS NOMINAL MM |
| Terminal Type and Quantity | 6 WIRE LEAD |
| Stator DC Resistance in Ohms | 11.80 NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 66-315 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| CRH8A1L-901 | 5/2 Secondary reference U.S. Government activity |
NSN 5990-00-583-9735 is a Synchro,receiver, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-583-9735 has 1 manufacturer part number on file: 66-315 (Lockheed Martin Corporation Div Rms - Mitchel Field).
2 possible matches (shared part number, not a government interchangeability claim): 4920-00-911-3015, 5985-01-031-1980. Verify interchangeability with system specifications before substitution.
Key specifications for 66-315: Body Size: 8; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 0.7490 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN; Undercut Width: 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN. 29 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.