The Synchro,receiver, cataloged under National Stock Number 5990-00-778-9883, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5990-00-778-9883 |
| Primary Part Number | R925-2E |
| Item Name | Synchro,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 |
| Zrs Impedance Angle in Deg | 25.80 NOMINAL |
| Zso-90 Resistance in Ohms | 113.00 NOMINAL |
| Flange Diameter | 1.0570 INCHES MINIMUM AND 1.0650 INCHES MAXIMUM IN |
| Undercut Width | 0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN |
| Shaft Diameter | 0.1195 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 135.15 MINIMUM AND 182.85 MAXIMUM |
| Undercut Diameter | 0.9700 INCHES MINIMUM AND 0.9800 INCHES MAXIMUM IN |
| Length | 0.0590 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM SHOULDER IN |
| Body Style | STANDARD ROUND C |
| Zrs Impedance Magnitude in Ohms | 395.00 NOMINAL |
| Flange Thickness | 0.0900 INCHES MINIMUM AND 0.0960 INCHES MAXIMUM IN |
| Torque Gradient Per Angular Deg | 5700.0 MILLIMETER-MILLIGRAMS NOMINAL MM |
| Plus J Zso-90 Reactance in Ohms | 335.00 NOMINAL |
| Rotor Input Electrical Power Rating | 800.0 MILLIWATTS NOMINAL |
| Zro Impedance Angle in Deg | 82.30 NOMINAL |
| Mounting Surface to Terminal End Distance | 1.7620 INCHES MINIMUM AND 1.7680 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 295.00 NOMINAL |
| Plus J Zso Reactance in Ohms | 1120.00 NOMINAL |
| Zrs Resistance in Ohms | 356.00 NOMINAL |
| Terminal Location | REAR |
| Rotor Input Voltage Rating in Volts | 115.0 NOMINAL |
| Zso-90 Impedance Angle in Deg | 71.30 NOMINAL |
| Zso Impedance Angle in Deg | 81.30 NOMINAL |
| Shaft Length | 0.5590 INCHES MINIMUM AND 0.5650 INCHES MAXIMUM SINGLE SHAFT IN |
| Pilot Diameter | 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Zso Impedance Magnitude in Ohms | 1130.00 NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| R925-2E PRIMARY | Kearfott Corp Div Kearfott Corporation (USA) |
| Reference | Meaning |
|---|---|
| R925-2E | 5/9 Secondary reference U.S. Government activity |
NSN 5990-00-778-9883 is a Synchro,receiver, manufactured by Kearfott Corp Div Kearfott Corporation, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-778-9883 has 1 manufacturer part number on file: R925-2E (Kearfott Corp Div Kearfott Corporation).
Key specifications for R925-2E: Body Size: 11; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Zrs Impedance Angle in Deg: 25.80 NOMINAL; Zso-90 Resistance in Ohms: 113.00 NOMINAL. 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 5990-00-778-9883 has DEMIL Code B. 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.