The Synchro,differential Receiver, cataloged under National Stock Number 5990-00-757-3370, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Kearfott Corp Div Kearfott Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-757-3370 |
| Primary Part Number | 5RS940-1E |
| Item Name | Synchro,differential Receiver |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Kearfott Corp Div Kearfott Corporation |
| Status | ACTIVE |
| Body Size | 11 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 1.0570 INCHES MINIMUM AND 1.0650 INCHES MAXIMUM IN |
| Undercut Width | 0.0500 INCHES NOMINAL IN |
| Shaft Diameter | 0.1195 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 17.00 NOMINAL |
| Undercut Diameter | 0.9750 INCHES NOMINAL IN |
| Length | 0.0620 INCHES NOMINAL SHOULDER IN |
| Body Style | STANDARD ROUND C |
| Flange Thickness | 0.0620 INCHES NOMINAL IN |
| Stator Input Current Rating | 165.0 MILLIAMPERES MAXIMUM |
| Zro Impedance Angle in Deg | 77.10 NOMINAL |
| Phase Shift Angle in Deg | 6.000 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 1.7960 INCHES NOMINAL IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Stator Input Electrical Power Rating | 250.0 MILLIWATTS NOMINAL |
| Terminal Location | REAR |
| Zso Impedance Angle in Deg | 79.70 NOMINAL |
| Shaft Length | 0.5520 INCHES MINIMUM AND 0.5760 INCHES MAXIMUM SINGLE SHAFT IN |
| Body Material | STEEL CORROSION RESISTING |
| Pilot Diameter | 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Zso Impedance Magnitude in Ohms | 74.30 NOMINAL |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 17.00 OUTPUT |
| Shoulder Diameter | 0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN |
| Stator Input Voltage Rating in Volts | 11.8 NOMINAL |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 26.00 |
| Shaft Slot Width | 0.0250 INCHES NOMINAL SINGLE SHAFT IN |
| Transformation Ratio | 1.154 ROTOR TO STATOR NOMINAL |
| Pilot Length | 0.0620 INCHES NOMINAL IN |
| 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 |
|---|---|
| 5RS940-1E PRIMARY | Kearfott Corp Div Kearfott Corporation (USA) |
| Reference | Meaning |
|---|---|
| 5RS940-1E | 5/9 Secondary reference U.S. Government activity |
NSN 5990-00-757-3370 is a Synchro,differential Receiver, manufactured by Kearfott Corp Div Kearfott Corporation, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-757-3370 has 1 manufacturer part number on file: 5RS940-1E (Kearfott Corp Div Kearfott Corporation).
Key specifications for 5RS940-1E: Body Size: 11; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 1.0570 INCHES MINIMUM AND 1.0650 INCHES MAXIMUM IN; Undercut Width: 0.0500 INCHES NOMINAL 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.
NSN 5990-00-757-3370 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.