The Test Set,electronic Systems, cataloged under National Stock Number 4920-01-416-1105, 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 Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-416-1105 |
| Primary Part Number | DER4100TSP-1 |
| Item Name | Test Set,electronic Systems |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company |
| Status | ACTIVE |
| Length | 18.000 INCHES NOMINAL IN |
| Height | 7.000 INCHES NOMINAL IN |
| Functional Description | TEST RELAYS AT AN INTERMEDIATE LOAD CONDITION AND DETERMINE THE CONDITION OF EACH INDIVIDUAL RELAY |
| Enclosure Feature | SINGLE ITEM W/HOUSING |
| Width | 12.000 INCHES NOMINAL IN |
| Test Type for Which Designed | FUNCTIONAL TESTING OF THE SWITCHING UNIT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| DER4100TSP-1 PRIMARY | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| Reference | Meaning |
|---|---|
| 4920PL1017889 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4920-01-416-1105 is a Test Set,electronic Systems, manufactured by Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-416-1105 has 1 manufacturer part number on file: DER4100TSP-1 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company).
Key specifications for DER4100TSP-1: Length: 18.000 INCHES NOMINAL IN; Height: 7.000 INCHES NOMINAL IN; Special Features: MANUFACTURERS NOUN: TEST SET,INSTRUMENT; Functional Description: TEST RELAYS AT AN INTERMEDIATE LOAD CONDITION AND DETERMINE THE CONDITION OF EACH INDIVIDUAL RELAY. 6 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.
NSN 4920-01-416-1105 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.