The Test Station,electrical-Electron, cataloged under National Stock Number 4920-01-390-4978, 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 Boeing Company Div Legacy Am&m. Government technical data includes 2 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 | 4920-01-390-4978 |
| Primary Part Number | 42D95000-001 |
| Item Name | Test Station,electrical-Electron |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Reference Data and Literature | SERD NO. 0009 |
| Functional Description | USED TO INTERFACE WITH THE B-1B CITS AND EMUX SYSTEMS; ALLOWS USERS TO UTILIZE CITS AND EMUX TO MONITOR AND ACTIVATE B-1B AIRCRAFT SYSTEMS/SUBSYSTEMS IN A REAL TIME ENVIRONMENT ENABLINGTHE EXPEDITIOUS VERIFICATION OF AIRCRAFT MODIFICATIONS AND ISOLATION OF AIRCRAFT SYSTEM/SUBSYSTEM FAILURES |
| 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 |
|---|---|
| 42D95000-001 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
NSN 4920-01-390-4978 is a Test Station,electrical-Electron, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-390-4978 has 1 manufacturer part number on file: 42D95000-001 (The Boeing Company Div Legacy Am&m).
Key specifications for 42D95000-001: Reference Data and Literature: SERD NO. 0009; Special Features: C/O ONE 486 CPU BASED MASTER STATION, ADDITIONAL 486 CPU WORKSTATIONS, A PRINTER, A MODEM INTERFACE, NEW DATAAMPLIFIER (NDBA), SOFTWARE, AND CABLES; SERD NOMENCLATURE CITS EMUX MAINT UNIT (C.E.M.U.); Functional Description: USED TO INTERFACE WITH THE B-1B CITS AND EMUX SYSTEMS; ALLOWS USERS TO UTILIZE CITS AND EMUX TO MONITOR AND ACTIVATE B-1B AIRCRAFT SYSTEMS/SUBSYSTEMS IN A REAL TIME ENVIRONMENT ENABLINGTHE EXPEDITIOUS VERIFICATION OF AIRCRAFT MODIFICATIONS AND ISOLATION OF AIRCRAFT SYSTEM/SUBSYSTEM FAILURES; End Item Identification: B-1B. 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.