The Keyboard,data Entry, cataloged under National Stock Number 5999-01-476-7149, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Luminescent Systems, Inc Dba Lsi Div Luminescent Systems, Inc, Ny. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-476-7149 |
| Primary Part Number | ML20 |
| Item Name | Keyboard,data Entry |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Luminescent Systems, Inc Dba Lsi Div Luminescent Systems, Inc, Ny |
| Status | ACTIVE |
| Key Quantity | 20 |
| Key Type | PUSH BUTTON |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | J |
| Weight | 0.2000 lbs |
| Cube | 0.0334 cu ft |
| Part Number | Manufacturer |
|---|---|
| 4A12164H01 | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| 2050F11 ITEM 18 | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| ML20 PRIMARY | Luminescent Systems, Inc Dba Lsi Div Luminescent Systems, Inc, Ny (USA) |
NSN 5999-01-476-7149 is a Keyboard,data Entry, manufactured by Luminescent Systems, Inc Dba Lsi Div Luminescent Systems, Inc, Ny, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-476-7149 has 3 manufacturer part numbers on file: 4A12164H01 (Northrop Grumman Systems Corporation Div Marine Systems), 2050F11 ITEM 18 (Northrop Grumman Systems Corporation Div Marine Systems), ML20 (Luminescent Systems, Inc Dba Lsi Div Luminescent Systems, Inc, Ny).
Key specifications for ML20: Overall Width: 3.090 INCHES NOMINAL IN; Key Quantity: 20; Key Type: PUSH BUTTON; Special Features: LEGEND FOR KEY 1: MENU; LEGEND FOR KEY 2: DIAG; LEGEND FOR KEY 3: GA SEL; LEGEND FOR KEY 4: LED CHK; LEGEND FOR KEY 5: NEXT; LEGEND FOR KEY 6: SYST STAT; LEGEND FOR KEY 7: SYST VLVS; LEGEND FOR KEY 9: RTC; LEGEND FOR KEY 10: LAST; LEGEND FOR KEY 11: CELL STAT; LEGEND FOR KEY 12: CELL VLVS; LEGEND FOR KEY 14: CHNG; LEGEND FOR KEY 16: SH DN STAT; LEGEND FOR KEY 17: INIT VLVS; LEGEND FOR KEY 19: ENTR; KEY 15 MARKED WITH A TRIANGLE SYMBOL POINTING UPWARD; KEY 20 MARKED WITH A TRIANGLE SYMBOL POINTING DOWNWARD. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.