The Keyboard,solid State, cataloged under National Stock Number 4920-01-187-2228, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4920-01-187-2228 |
| Item Name | Keyboard,solid State |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| FSC Application Data | WEAPONS SYSTEM TEST |
| General Characteristics Item Description | 17.864 IN. LG; 9.385 IN. W; 4.280 IN. H; CAST ALUMINUM; STEPPED KEYBOARD STYLE; 82 TOTAL KEYS; ENCODED; CONNECTOR: STANDARD CARD EDGE IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SOURCE CONTROL DRAWING NO. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| A31U29120-1 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| K54488-82SW12 | 3/3 Design control — primary reference U.S. Government activity |
NSN 4920-01-187-2228 is a Keyboard,solid State, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-187-2228 has 1 manufacturer part number on file: A31U29120-1 (Northrop Grumman Systems Corporation).
Key specifications for 4920-01-187-2228: FSC Application Data: WEAPONS SYSTEM TEST; General Characteristics Item Description: 17.864 IN. LG; 9.385 IN. W; 4.280 IN. H; CAST ALUMINUM; STEPPED KEYBOARD STYLE; 82 TOTAL KEYS; ENCODED; CONNECTOR: STANDARD CARD EDGE IN; End Item Identification: CATS 111 D (AN/USM429; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SOURCE CONTROL DRAWING NO.. 3 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.