The Synchro,transmitter, cataloged under National Stock Number 5990-00-889-9633, 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 Dba Northrop Grumman Systems Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5990-00-889-9633 |
| Primary Part Number | 900141-32 |
| Item Name | Synchro,transmitter |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Body Size | 8 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 0.7500 INCHES NOMINAL IN |
| Undercut Width | 0.0620 INCHES NOMINAL IN |
| Shaft Diameter | 0.0900 INCHES NOMINAL SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 37.00 NOMINAL |
| Undercut Diameter | 0.6910 INCHES NOMINAL IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND A |
| Flange Thickness | 0.0620 INCHES NOMINAL IN |
| Shaft Maximum Runout | 0.0010 INCHES IN |
| Rotor Input Electrical Power Rating | 540.0 MILLIWATTS NOMINAL |
| Phase Shift Angle in Deg | 8.500 OUTPUT TO INPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 1.5600 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 54.00 NOMINAL |
| Plus J Zso Reactance in Ohms | 45.00 NOMINAL |
| Terminal Location | REAR |
| Rotor Input Voltage Rating in Volts | 26.0 NOMINAL |
| Shaft Maximum Radial Play | 0.0008 INCHES IN |
| Shaft Length | 0.4380 INCHES NOMINAL SINGLE SHAFT IN |
| Body Material | STEEL CORROSION RESISTING |
| Pilot Diameter | 0.4850 INCHES NOMINAL IN |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 0.02 OUTPUT |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 0.03 |
| Shaft Slot Width | 0.0200 INCHES NOMINAL SINGLE SHAFT IN |
| Plus J Zro Reactance in Ohms | 260.00 NOMINAL |
| Pilot Length | 0.0430 INCHES NOMINAL IN |
| Plus J Zss Reactance in Ohms | 20.00 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 |
|---|---|
| 900141-32 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| EGH-8-EE-7 | 5/2 Secondary reference U.S. Government activity |
NSN 5990-00-889-9633 is a Synchro,transmitter, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-889-9633 has 1 manufacturer part number on file: 900141-32 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 900141-32: Body Size: 8; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 0.7500 INCHES NOMINAL IN; Undercut Width: 0.0620 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.
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.