The Test Set,environmental Control S, cataloged under National Stock Number 4920-01-020-1282, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-020-1282 |
| Primary Part Number | AD31450-1 |
| Item Name | Test Set,environmental Control S |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Phase | SINGLE |
| AC Voltage Rating | 115.0 VOLTS NOMINAL |
| DC Voltage Rating | 28.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Reference Data and Literature | T.O. 33D2-39-20-1 |
| Electrical Power Source Relationship | OPERATING |
| Entry Date | 76-04-26 |
| Functional Description | PERFORMS SEQUENTIAL TESTS TO VERIFY PROPER PERFORMANCE OF ZONE TEMPERATURE CONTROLLER |
| Enclosure Feature | SINGLE ITEM W/HOUSING |
| Frequency Rating | 60.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM |
| Test Type for Which Designed | FUNCTIONAL |
| 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 |
|---|---|
| AD31450-1 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 4920-01-020-1282 is a Test Set,environmental Control S, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-020-1282 has 1 manufacturer part number on file: AD31450-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for AD31450-1: Phase: SINGLE; AC Voltage Rating: 115.0 VOLTS NOMINAL; DC Voltage Rating: 28.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED; Reference Data and Literature: T.O. 33D2-39-20-1. 10 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.