The Relay-Switch, cataloged under National Stock Number 5999-01-516-3906, 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 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5999-01-516-3906 |
| Primary Part Number | D2-729B003 |
| Item Name | Relay-Switch |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc |
| Status | ACTIVE |
| Supplementary Features | BOEING MAINTENANCE PARTS CATALOG 34-53-03-02 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| D2-729B003 PRIMARY | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc (USA) |
| Reference | Meaning |
|---|---|
| 5999PL0712685 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5999-01-516-3906 is a Relay-Switch, manufactured by Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-516-3906 has 1 manufacturer part number on file: D2-729B003 (Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc).
Key specifications for D2-729B003: Supplementary Features: BOEING MAINTENANCE PARTS CATALOG 34-53-03-02; Special Features: INTERCHANGEABLE WITH D2-729B005 IN SHIPSETS; IS NOT USED WITH 622-7878-120; CONTROLLING AGENCY NOMENCLATURE SWITCH; End Item Identification: B757 AIRCRAFT. 1 specification is 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.