The Resolver,electrical, cataloged under National Stock Number 5990-01-016-2530, 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 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-016-2530 |
| Primary Part Number | 917055-1 |
| Item Name | Resolver,electrical |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Body Size | 31 |
| Body Diameter | 3.0293 INCHES MINIMUM AND 3.0298 INCHES MAXIMUM IN |
| Rotor DC Resistance in Ohms | 231.00 NOMINAL AND 575.00 NOMINAL |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | PICK-OFF A |
| Rotor Input Electrical Power Rating | 2.55 WATTS NOMINAL |
| Phase Shift Angle in Deg | 12.500 INPUT TO OUTPUT MINIMUM AND 45.000 INPUT TO OUTPUT MAXIMUM |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 235.00 MINIMUM AND 785.00 MAXIMUM |
| Terminal Location | FRONT |
| Rotor Input Voltage Rating in Volts | 26.0 NOMINAL |
| Body Thru-Hole Diameter | 1.1996 INCHES MINIMUM AND 1.1999 INCHES MAXIMUM IN |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 25.00 |
| Plus J Zro Reactance in Ohms | 250.00 MINIMUM AND 2550.00 MAXIMUM |
| Transformation Ratio | 0.454 ROTOR TO STATOR NOMINAL |
| Plus J Zss Reactance in Ohms | 85.00 MINIMUM AND 130.00 MAXIMUM |
| Rotor Input Current Rating | 12.5 MILLIAMPERES MINIMUM AND 95.0 MILLIAMPERES MAXIMUM |
| Material | STEEL CORROSION RESISTING BODY |
| Terminal Type and Quantity | 16 WIRE LEAD |
| Stator DC Resistance in Ohms | 365.00 NOMINAL AND 370.00 NOMINAL |
| Zss Resistance in Ohms | 430.00 MINIMUM AND 495.00 MAXIMUM |
| 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 |
|---|---|
| 31RCX-300-B-0/1 | American Precision Industries, Inc Div Portescap Us (USA) |
| 917055-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| SSJH-31-D2 | 5/2 Secondary reference U.S. Government activity |
NSN 5990-01-016-2530 is a Resolver,electrical, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-016-2530 has 2 manufacturer part numbers on file: 31RCX-300-B-0/1 (American Precision Industries, Inc Div Portescap Us), 917055-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 917055-1: Body Size: 31; Body Diameter: 3.0293 INCHES MINIMUM AND 3.0298 INCHES MAXIMUM IN; Rotor DC Resistance in Ohms: 231.00 NOMINAL AND 575.00 NOMINAL; Fragility Factor: MODERATELY RUGGED. 21 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 5990-01-016-2530 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.