The Resolver,electrical, cataloged under National Stock Number 5990-00-552-1369, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Instruments and Flight Research, Inc.. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-552-1369 |
| Primary Part Number | 517876 |
| Item Name | Resolver,electrical |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Instruments and Flight Research, Inc. |
| Status | ACTIVE |
| Body Size | 15 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 1.4360 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM IN |
| Undercut Width | 0.0780 INCHES NOMINAL IN |
| Shaft Diameter | 0.1871 INCHES MINIMUM AND 0.1873 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 200.00 NOMINAL |
| Undercut Diameter | 1.3120 INCHES NOMINAL IN |
| Length | 0.1320 INCHES NOMINAL SHOULDER IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND C |
| Flange Thickness | 0.0930 INCHES NOMINAL IN |
| Alignment Hole Bolt Circle Diameter | 0.1120 INCHES NOMINAL IN |
| Phase Shift Angle in Deg | 3.500 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 2.0640 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Terminal Location | REAR |
| Alignment Hole Quantity | 4 |
| Shaft Length | 0.4150 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.3115 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM IN |
| Stator Input Voltage Rating in Volts | 60.0 NOMINAL |
| Alignment Hole Depth | 0.1200 INCHES NOMINAL IN |
| Shaft Slot Width | 0.0300 INCHES NOMINAL SINGLE SHAFT IN |
| Transformation Ratio | 0.980 ROTOR TO STATOR NOMINAL |
| Pilot Length | 0.0400 INCHES NOMINAL IN |
| Output Voltage Functional Error Range in Percent | -0.1 TO 0.0 |
| Material | STEEL CORROSION RESISTING BODY |
| Terminal Type and Quantity | 8 SCREW |
| Transformation Ratio Equality in Percent | 2.0 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 |
|---|---|
| 517876 | Instruments and Flight Research, Inc. (USA) |
| Reference | Meaning |
|---|---|
| R150 | 3/9 Design control — primary reference Edo |
| VRN15-5A1 | 5/9 Secondary reference Vernitron Corp |
| IR15N4-316 | 5/9 Secondary reference Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc |
| R150M0D102 | 5/9 Secondary reference Edo |
| R150M0D102 | 5/9 Secondary reference Lambda Novatronics Inc Delray Opns |
NSN 5990-00-552-1369 is a Resolver,electrical, manufactured by Instruments and Flight Research, Inc., classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-552-1369 has 1 manufacturer part number on file: 517876 (Instruments and Flight Research, Inc.).
4 possible matches (shared part number, not a government interchangeability claim): 5120-00-566-1005, 5985-01-342-3412, 5975-01-387-5660. Verify interchangeability with system specifications before substitution.
Key specifications for 517876: Body Size: 15; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 1.4360 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM IN; Undercut Width: 0.0780 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.