The Plug-in Unit,electrical-Electron, cataloged under National Stock Number 4935-01-420-5485, is classified within Federal Supply Class 4935 (Guided Missile Maintenance, Repair, and Checkout Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Astronics Test Systems Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4935-01-420-5485 |
| Primary Part Number | 404944 OPT 1 |
| Item Name | Plug-in Unit,electrical-Electron |
| FSC / FSG | 4935 / 49 — Guided Missile Maintenance, Repair, and Checkout Specialized Equipment |
| Manufacturer | Astronics Test Systems Inc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 404944 OPT 1 PRIMARY | Astronics Test Systems Inc (USA) |
| A31U29700-2 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| Reference | Meaning |
|---|---|
| 174DP064-1 | 7/2 Vendor item drawing reference Frontier Electronic Systems Corp |
| A31U29700-2 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4935-01-420-5485 is a Plug-in Unit,electrical-Electron, manufactured by Astronics Test Systems Inc, classified under FSC 4935, Guided Missile Maintenance, Repair, and Checkout Specialized Equipment. Status: active.
NSN 4935-01-420-5485 has 2 manufacturer part numbers on file: 404944 OPT 1 (Astronics Test Systems Inc), A31U29700-2 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).
Key specifications for 404944 OPT 1: Criticality Code Justification: FEAT; Overall Length: 13.777 INCHES NOMINAL IN; Overall Width: 9.187 INCHES NOMINAL IN; Special Features: ELECTROSTATIC DISCHARGE SENSITIVE. 1 specification is 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 4935-01-420-5485 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.