The Synchro,transmitter, cataloged under National Stock Number 5990-01-074-2210, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-074-2210 |
| Primary Part Number | 6887892 |
| Item Name | Synchro,transmitter |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Body Size | 11 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 1.0620 INCHES NOMINAL IN |
| Undercut Width | 0.0620 INCHES NOMINAL IN |
| Shaft Diameter | 0.1200 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 160.00 NOMINAL |
| Undercut Diameter | 0.9750 INCHES NOMINAL IN |
| Length | 0.0620 INCHES NOMINAL SHOULDER IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND C |
| Shaft Radial Play Determining Weight | 4.0 OUNCES OZ |
| Flange Thickness | 0.0930 INCHES NOMINAL IN |
| Shaft Maximum Runout | 0.0010 INCHES IN |
| Rotor Input Electrical Power Rating | 1.03 WATTS NOMINAL |
| Zro Impedance Angle in Deg | 80.80 NOMINAL |
| Phase Shift Angle in Deg | 5.600 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 1.7990 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Terminal Location | REAR |
| Rotor Input Voltage Rating in Volts | 115.0 NOMINAL |
| Shaft End Play Determining Weight | 16.0 OUNCES OZ |
| Shaft Maximum Radial Play | 0.0005 INCHES IN |
| Schematic Diagram Designator | 1 Y-ROTOR, 1 STATOR |
| Zso Impedance Angle in Deg | 79.50 NOMINAL |
| Shaft Length | 0.5620 INCHES NOMINAL SINGLE SHAFT IN |
| Body Material | STEEL CORROSION RESISTING |
| Pilot Diameter | 0.6250 INCHES MAXIMUM IN |
| Zso Impedance Magnitude in Ohms | 18.10 NOMINAL |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 17.00 OUTPUT |
| 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 |
|---|---|
| 6887892 | Noel-Smyser Engineering Corporation Dba Noel Smyser Engineering Corp (USA) |
| 6887892 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6887892 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 5RS910-6L | 5/1 Secondary reference U.S. Government activity |
NSN 5990-01-074-2210 is a Synchro,transmitter, manufactured by Rolls-Royce Corporation, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-074-2210 has 2 manufacturer part numbers on file: 6887892 (Noel-Smyser Engineering Corporation Dba Noel Smyser Engineering Corp), 6887892 (Rolls-Royce Corporation).
Key specifications for 6887892: Body Size: 11; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 1.0620 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.