The Synchro,torque Reci, cataloged under National Stock Number 5990-01-042-7963, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-042-7963 |
| Item Name | Synchro,torque Reci |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| General Characteristics Item Description | ELECTRICAL- DESIGN REQUIREMENS ASFOLLOWS-INPUT POWER 0.8 WATTS MAXIMUM,INPUT CURRENT 0.19 AMPS MAXIMUM,IMPEDANCE ZSO AT 90 DEGREES 15 OHMS MAXIMUM,BRUSH CONTACT 2.0 OHMS MAXIMUM,TORQUE GRADIENT(MG-MM/DEG) 2800 MINIMUM,NULLVOLTAGES-TOTAL (MV.) 50 MAXIMUM,PHASE SHIFT 8.0 DEGREES MAXIMUM,TRANSFORMATION RATIO 0.454 PLUS OR MINUS 3 PERCENTSYNCHRONIZATION 4 SECONDS MAXIMUM. THEMECHANICAL DESIGN REQUIREMENTS ARE IN THOUSANDTHS OF AN INCH TOLERANCE WITH NORMAL EXCITATION VOLTAGE BEING 26V AT400 HERTZ.QUALIFICATION TESTS SHALL BERUN ON SIX UNITS FOR VIBRATION AND FORSHOCK WITH HALF BEING TESTED FOR RADIONOISE,HUMIDITY,HIGH-LOW TEMPERATURE V |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1976194-2 | 3/2 Design control — primary reference U.S. Government activity |
| 3563100-3024 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| 1976194-2 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| CRH-10-MS-4/A007 | 5/2 Secondary reference U.S. Government activity |
| 3563100-3024 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-01-042-7963 is a Synchro,torque Reci, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-01-042-7963: General Characteristics Item Description: ELECTRICAL- DESIGN REQUIREMENS ASFOLLOWS-INPUT POWER 0.8 WATTS MAXIMUM,INPUT CURRENT 0.19 AMPS MAXIMUM,IMPEDANCE ZSO AT 90 DEGREES 15 OHMS MAXIMUM,BRUSH CONTACT 2.0 OHMS MAXIMUM,TORQUE GRADIENT(MG-MM/DEG) 2800 MINIMUM,NULLVOLTAGES-TOTAL (MV.) 50 MAXIMUM,PHASE SHIFT 8.0 DEGREES MAXIMUM,TRANSFORMATION RATIO 0.454 PLUS OR MINUS 3 PERCENTSYNCHRONIZATION 4 SECONDS MAXIMUM. THEMECHANICAL DESIGN REQUIREMENTS ARE IN THOUSANDTHS OF AN INCH TOLERANCE WITH NORMAL EXCITATION VOLTAGE BEING 26V AT400 HERTZ.QUALIFICATION TESTS SHALL BERUN ON SIX UNITS FOR VIBRATION AND FORSHOCK WITH HALF BEING TESTED FOR RADIONOISE,HUMIDITY,HIGH-LOW TEMPERATURE V. 1 specification is 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.