The Synchro,differential Receiver, cataloged under National Stock Number 5990-00-879-8010, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3harris Interstate Electronics 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-879-8010 |
| Primary Part Number | W1660B1-118 |
| Item Name | Synchro,differential Receiver |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | L3harris Interstate Electronics Corporation |
| Status | ACTIVE |
| Body Size | 8 |
| Shaft Type | ROUND, SLOTTED FRONT SHAFT |
| Flange Diameter | 0.7500 INCHES MAXIMUM IN |
| Undercut Width | 0.0620 INCHES NOMINAL IN |
| Shaft Diameter | 0.1200 INCHES NOMINAL FRONT SHAFT IN |
| Rotor DC Resistance in Ohms | 40.00 NOMINAL |
| Undercut Diameter | 0.6910 INCHES MAXIMUM IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND A |
| Shaft Radial Play Determining Weight | 4.0 OUNCES OZ |
| Flange Thickness | 0.0620 INCHES NOMINAL IN |
| Torque Gradient Per Angular Deg | 2400.0 MILLIMETER-MILLIGRAMS NOMINAL MM |
| Shaft Maximum Runout | 0.0010 INCHES IN |
| Stator Input Current Rating | 132.0 AMPERES NOMINAL |
| Phase Shift Angle in Deg | 10.500 INPUT TO OUTPUT MINIMUM AND 13.500 INPUT TO OUTPUT MAXIMUM |
| Mounting Surface to Terminal End Distance | 1.2410 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 38.00 NOMINAL |
| Stator Input Electrical Power Rating | 350.0 MILLIWATTS NOMINAL |
| Plus J Zso Reactance in Ohms | 75.00 NOMINAL |
| Terminal Location | REAR |
| Shaft End Play Determining Weight | 8.0 OUNCES OZ |
| Shaft Maximum Radial Play | 0.0008 INCHES IN |
| Schematic Diagram Designator | 1 Y-ROTOR, 1 Y-STATOR |
| Shaft Length | 0.3125 INCHES NOMINAL FRONT SHAFT IN |
| Body Material | ALUMINUM |
| Pilot Diameter | 0.5000 INCHES MAXIMUM IN |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 20.00 OUTPUT |
| Stator Input Voltage Rating in Volts | 11.8 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 |
|---|---|
| 8TD101A2 | American Precision Industries, Inc Div Portescap Us (USA) |
| W1660B1-118 PRIMARY | L3harris Interstate Electronics Corporation (USA) |
| Reference | Meaning |
|---|---|
| HDC8AH3L067 | 5/2 Secondary reference U.S. Government activity |
| 189160-000 | 5/2 Secondary reference U.S. Government activity |
| V0DX8-12-4C | 5/9 Secondary reference Vernitron Corp |
| 008-666 | 5/9 Secondary reference U.S. Government activity |
| 008-666 | 5/9 Secondary reference U.S. Government activity |
| VCDX8-12-4C | 5/9 Secondary reference Vernitron Corp |
NSN 5990-00-879-8010 is a Synchro,differential Receiver, manufactured by L3harris Interstate Electronics Corporation, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-879-8010 has 2 manufacturer part numbers on file: 8TD101A2 (American Precision Industries, Inc Div Portescap Us), W1660B1-118 (L3harris Interstate Electronics Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-492-9440. Verify interchangeability with system specifications before substitution.
Key specifications for W1660B1-118: Body Size: 8; Shaft Type: ROUND, SLOTTED FRONT SHAFT; Flange Diameter: 0.7500 INCHES MAXIMUM 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.