The Light-Switch, cataloged under National Stock Number 5999-00-686-4037, 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 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5999-00-686-4037 |
| Primary Part Number | A79029-11 |
| Item Name | Light-Switch |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 |
| Lamp Bulb Size Designator | TU-3/4 |
| Current Type and Rating in Amps | 10.00 DC NOMINAL |
| Lamp Voltage Rating in Volts | 6.0 NOMINAL |
| Lens Color | RED |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Mounting Method | THREADED BUSHING |
| Mounting Facility Thread Size | 5/8-24 UNEF |
| Lamp Base Type Accommodated | MIDGET FLANGED |
| Operating Voltage in Volts | 28.0 NOMINAL |
| Switch Type | PUSH |
| Switch Contact Arrangement | 2 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED |
| Special Markings | F1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Weight | 0.0100 lbs |
| Cube | 0.0010 cu ft |
| Part Number | Manufacturer |
|---|---|
| A79029-11 PRIMARY | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| Reference | Meaning |
|---|---|
| 721899-017 | 5/9 Secondary reference Stellant Systems Inc |
| 721899-017 | 5/2 Secondary reference U.S. Government activity |
| DMS 79027B | 5/9 Secondary reference Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
NSN 5999-00-686-4037 is a Light-Switch, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-686-4037 has 1 manufacturer part number on file: A79029-11 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).
2 possible matches (shared part number, not a government interchangeability claim): 5999-00-687-0513, 5999-00-688-3666. Verify interchangeability with system specifications before substitution.
Key specifications for A79029-11: Mounting Facility Quantity: 1; Lamp Bulb Size Designator: TU-3/4; Current Type and Rating in Amps: 10.00 DC NOMINAL; Lamp Voltage Rating in Volts: 6.0 NOMINAL. 13 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.