The Synchro,receiver, cataloged under National Stock Number 5990-01-271-8129, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-271-8129 |
| Primary Part Number | 1807393 |
| Item Name | Synchro,receiver |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Body Size | 18 |
| Shaft Type | SPLINE SINGLE SHAFT |
| Flange Diameter | 44.4500 MILLIMETERS NOMINAL MM |
| Undercut Width | 2.0000 MILLIMETERS NOMINAL MM |
| Shaft Diameter | 4.7 MILLIMETERS MINIMUM SINGLE SHAFT MM |
| Undercut Diameter | 41.0000 MILLIMETERS NOMINAL MM |
| Length | 3.3000 MILLIMETERS MINIMUM AND 3.5000 MILLIMETERS MAXIMUM SHOULDER MM |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND C |
| Flange Thickness | 2.3000 MILLIMETERS MINIMUM AND 2.5000 MILLIMETERS MAXIMUM MM |
| Torque Gradient Per Angular Deg | 2.0 CENTIMETER-GRAMS MINIMUM CM |
| Rotor Input Electrical Power Rating | 4.0 WATTS MAXIMUM |
| Alignment Hole Bolt Circle Diameter | 31.6700 MILLIMETERS MINIMUM AND 31.8300 MILLIMETERS MAXIMUM MM |
| Spline Tooth Quantity | 21 SINGLE SHAFT |
| Mounting Surface to Terminal End Distance | 62.6000 MILLIMETERS NOMINAL MM |
| Frequency in Hertz | 60.0 NOMINAL |
| Terminal Location | REAR |
| Rotor Input Voltage Rating in Volts | 115.0 NOMINAL |
| Alignment Hole Quantity | 4 |
| Shaft Length | 13.0 MILLIMETERS NOMINAL SINGLE SHAFT MM |
| Body Material | STEEL CORROSION RESISTING |
| Pilot Diameter | 23.8100 MILLIMETERS NOMINAL MM |
| Spline Tooth Diametral Pitch | 120 SINGLE SHAFT |
| Shoulder Diameter | 39.6700 MILLIMETERS NOMINAL MM |
| Receiver Error Angular Range in Minutes | -1.0 TO 1.0 |
| Alignment Hole Depth | 3.2000 MILLIMETERS MINIMUM MM |
| Transformation Ratio | 0.783 STATOR TO ROTOR NOMINAL |
| Pilot Length | 0.9000 MILLIMETERS MINIMUM AND 1.1000 MILLIMETERS MAXIMUM MM |
| Electrical Error Angular Range in Minutes | -8.0 TO 8.0 |
| 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 |
|---|---|
| 1807393 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5990-01-271-8129 is a Synchro,receiver, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-271-8129 has 1 manufacturer part number on file: 1807393 (Northrop Grumman Systems Corporation).
Key specifications for 1807393: Body Size: 18; Shaft Type: SPLINE SINGLE SHAFT; Flange Diameter: 44.4500 MILLIMETERS NOMINAL MM; Undercut Width: 2.0000 MILLIMETERS NOMINAL MM. 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.