The Resolver,electrical, cataloged under National Stock Number 5990-01-082-3385, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is American Precision Industries, Inc Div Portescap Us. Government technical data includes 24 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5990-01-082-3385 |
| Primary Part Number | 8RC-300-E3B |
| Item Name | Resolver,electrical |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | American Precision Industries, Inc Div Portescap Us |
| Status | ACTIVE |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 0.7470 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Undercut Width | 0.0590 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN |
| Shaft Diameter | 0.0895 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM SINGLE SHAFT IN |
| Undercut Diameter | 0.6910 INCHES MAXIMUM IN |
| Body Style | STANDARD ROUND A |
| Flange Thickness | 0.0590 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN |
| Rotor Input Electrical Power Rating | 40.0 WATTS MAXIMUM |
| Phase Shift Angle in Deg | 16.000 INPUT TO OUTPUT MINIMUM AND 20.000 INPUT TO OUTPUT MAXIMUM |
| Mounting Surface to Terminal End Distance | 1.2400 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Terminal Location | REAR |
| Rotor Input Voltage Rating in Volts | 26.0 NOMINAL |
| Compensation Method | WINDING COMPENSATED |
| Shaft Length | 0.3480 INCHES MINIMUM AND 0.4720 INCHES MAXIMUM SINGLE SHAFT IN |
| Pilot Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 30.00 |
| Shaft Slot Width | 0.0150 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM SINGLE SHAFT IN |
| Transformation Ratio | 0.440 ROTOR TO STATOR MINIMUM AND 0.468 ROTOR TO STATOR MAXIMUM |
| Pilot Length | 0.0370 INCHES MINIMUM AND 0.0430 INCHES MAXIMUM IN |
| Rotor Input Current Rating | 45.0 MILLIAMPERES NOMINAL |
| Terminal Type and Quantity | 6 WIRE LEAD |
| Transformation Ratio Equality in Percent | 0.5 MAXIMUM |
| Shaft Slot Depth | 0.0200 INCHES MINIMUM AND 0.0350 INCHES MAXIMUM SINGLE SHAFT IN |
| 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 |
|---|---|
| 8RC-300-E3B PRIMARY | American Precision Industries, Inc Div Portescap Us (USA) |
| 8311-7301-002 | Bae Systems (operations) Limited (GBR) |
| Reference | Meaning |
|---|---|
| U-217248 | 5/2 Secondary reference U.S. Government activity |
| 11779073 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 5990-01-082-3385 is a Resolver,electrical, manufactured by American Precision Industries, Inc Div Portescap Us, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-082-3385 has 2 manufacturer part numbers on file: 8RC-300-E3B (American Precision Industries, Inc Div Portescap Us), 8311-7301-002 (Bae Systems (operations) Limited).
Key specifications for 8RC-300-E3B: Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 0.7470 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN; Undercut Width: 0.0590 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN; Shaft Diameter: 0.0895 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM SINGLE SHAFT IN. 24 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 5990-01-082-3385 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.