The Case,test Set, cataloged under National Stock Number 4920-01-418-7978, 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 The Skydyne Company. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-418-7978 |
| Primary Part Number | 531900 |
| Item Name | Case,test Set |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | The Skydyne Company |
| Status | ACTIVE |
| Handle Location | END |
| Locking Device Type | TRUNK LATCH |
| Locking Device | INCLUDED |
| Handle Quantity | 2 |
| 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 |
|---|---|
| 531900 PRIMARY | The Skydyne Company (USA) |
| 123SAV58121-1 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 123SAV58121 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 123SAV58121-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4920-01-418-7978 is a Case,test Set, manufactured by The Skydyne Company, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-418-7978 has 2 manufacturer part numbers on file: 531900 (The Skydyne Company), 123SAV58121-1 (Northrop Grumman Systems Corporation).
Key specifications for 531900: Handle Location: END; Locking Device Type: TRUNK LATCH; Locking Device: INCLUDED; Handle Quantity: 2. 4 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.