The Synchro,differential Transmitter, cataloged under National Stock Number 5990-01-105-4953, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cae Usa Inc.. Government technical data includes 27 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-105-4953 |
| Primary Part Number | 854340 |
| Item Name | Synchro,differential Transmitter |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Cae Usa Inc. |
| Status | ACTIVE |
| Body Size | 11 |
| Shaft Type | ROUND, HOLLOWED SINGLE SHAFT |
| Flange Diameter | 1.0620 INCHES NOMINAL IN |
| Undercut Width | 0.0500 INCHES NOMINAL IN |
| Shaft Diameter | 0.1200 INCHES MAXIMUM SINGLE SHAFT IN |
| 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 |
| Shaft Hole Diameter | 0.0600 INCHES MAXIMUM SINGLE SHAFT IN |
| Flange Thickness | 0.0930 INCHES NOMINAL IN |
| Torque Gradient Per Angular Deg | 1600.0 MILLIMETER-MILLIGRAMS NOMINAL MM |
| Shaft Maximum Runout | 0.0008 INCHES IN |
| Mounting Surface to Terminal End Distance | 1.3820 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Terminal Location | REAR |
| Schematic Diagram Designator | 1 ROTOR, 1 STATOR |
| Shaft Length | 0.3200 INCHES NOMINAL SINGLE SHAFT IN |
| Body Material | STEEL CORROSION RESISTING |
| Pilot Diameter | 0.6250 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.0000 INCHES MAXIMUM IN |
| Stator Input Voltage Rating in Volts | 10.0 NOMINAL |
| Pilot Length | 0.0620 INCHES NOMINAL IN |
| Terminal Type and Quantity | 4 WIRE LEAD |
| Shaft End Play | 0.0020 INCHES MINIMUM AND 0.0050 INCHES MAXIMUM IN |
| Stator DC Resistance in Ohms | 180.00 NOMINAL |
| 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 |
|---|---|
| 854340 | Cae Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| CR40928002 | C/1 Advisory reference — outside the item-of-supply concept Kearfott Corp Div Kearfott Corporation |
| 854340 | 5/9 Secondary reference Raytheon Technical Services Company |
| CR40928002 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-01-105-4953 is a Synchro,differential Transmitter, manufactured by Cae Usa Inc., classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-105-4953 has 1 manufacturer part number on file: 854340 (Cae Usa Inc.).
Key specifications for 854340: Body Size: 11; Shaft Type: ROUND, HOLLOWED SINGLE SHAFT; Flange Diameter: 1.0620 INCHES NOMINAL IN; Undercut Width: 0.0500 INCHES NOMINAL IN. 27 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 5990-01-105-4953 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.