The Test Set,indicator, cataloged under National Stock Number 4920-00-327-5328, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4920-00-327-5328 |
| Item Name | Test Set,indicator |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| FSC Application Data | SECONDARY POWER SUBSYSTEM |
| Length | 8.000 INCHES NOMINAL IN |
| Reference Data and Literature | SERD NO. 1790 |
| Height | 3.000 INCHES NOMINAL IN |
| Functional Description | USED TO MONITOR ACUATION OF THE AMAD L.H. AND R.H. GEARBOXES LEFT AND RIGHT ENGINE CUT OUT SWITCHES AND THE DECOUPLING SWITCH WHILE THE UNIT IS BEING CHECKED ON THE HCT-6 TEST STAND |
| Enclosure Feature | SINGLE ITEM W/HOUSING |
| Width | 6.000 INCHES NOMINAL IN |
| Test Type for Which Designed | ENGINE CUT OUT AND DECOUPLING SWITCHES |
| 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 |
|---|---|
| 291652-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-00-327-5328 is a Test Set,indicator, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4710-01-594-6583. Verify interchangeability with system specifications before substitution.
Key specifications for 4920-00-327-5328: FSC Application Data: SECONDARY POWER SUBSYSTEM; Length: 8.000 INCHES NOMINAL IN; Reference Data and Literature: SERD NO. 1790; Height: 3.000 INCHES NOMINAL IN. 8 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.