The Light-Switch Assembly, cataloged under National Stock Number 5999-01-221-2855, 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 Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc. Government technical data includes 7 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-221-2855 |
| Primary Part Number | 10800HA-105 |
| Item Name | Light-Switch Assembly |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc |
| Status | ACTIVE |
| Component Type and Quantity | 4 LIGHT AND 1 SWITCH |
| Lamp Bulb Size Designator | T-1 |
| Lens Color | GREEN AND WHITE |
| Features Provided | KNOCKOUT ENTRANCE |
| Lamp Base Style | MIDGET FLANGE |
| Switch Type | PUSH |
| Voltage Rating | 28.0 VOLTS NOMINAL |
| 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 | 0.2800 lbs |
| Cube | 0.0081 cu ft |
| Part Number | Manufacturer |
|---|---|
| S774415-105 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| 10800HA-105 PRIMARY | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc (USA) |
NSN 5999-01-221-2855 is a Light-Switch Assembly, manufactured by Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-221-2855 has 2 manufacturer part numbers on file: S774415-105 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 10800HA-105 (Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc).
Key specifications for 10800HA-105: Component Type and Quantity: 4 LIGHT AND 1 SWITCH; Lamp Bulb Size Designator: T-1; Lens Color: GREEN AND WHITE; Overall Length: 1.785 INCHES NOMINAL IN. 7 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.