The Synchro Assembly, cataloged under National Stock Number 5990-01-303-9920, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-303-9920 |
| Item Name | Synchro Assembly |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Fragility Factor | MODERATELY RUGGED |
| General Characteristics Item Description | 2 UNIT TANDEM SYNCHRO; SHAFT CONNECTED; ROTOR AS PRIMARY FOR EACH UNIT; INPUT VOLTAGE 115 V; FREQUENCY 400 HZ; INPUT CURRENT .039 A; ROTOR DC RESISTANCE 195 OHMS; STATOR DC RESISTANCE 3.6 OHMS; OUTPUT VOLTAGE 11.8 V; 4.19 IN. OVERALL LENGTH; 1.067 IN. DIAMETER; 2 WIRE LEAD HARNESSES AT REAR OF EACH UNIT; BODY MATERIAL,STAINLESS STEEL 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 |
|---|---|
| UGGH-11-E-061 | 3/9 Design control — primary reference Moog Inc. |
| UGGH-11-E-061 | 5/9 Secondary reference U.S. Government activity |
NSN 5990-01-303-9920 is a Synchro Assembly, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-01-303-9920: Fragility Factor: MODERATELY RUGGED; General Characteristics Item Description: 2 UNIT TANDEM SYNCHRO; SHAFT CONNECTED; ROTOR AS PRIMARY FOR EACH UNIT; INPUT VOLTAGE 115 V; FREQUENCY 400 HZ; INPUT CURRENT .039 A; ROTOR DC RESISTANCE 195 OHMS; STATOR DC RESISTANCE 3.6 OHMS; OUTPUT VOLTAGE 11.8 V; 4.19 IN. OVERALL LENGTH; 1.067 IN. DIAMETER; 2 WIRE LEAD HARNESSES AT REAR OF EACH UNIT; BODY MATERIAL,STAINLESS STEEL V; End Item Identification: HELICOPTER. 2 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.