The Switch Subassembly, cataloged under National Stock Number 5930-00-009-8917, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5930-00-009-8917 |
| Primary Part Number | 50551-4 |
| Item Name | Switch Subassembly |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 2550955-4 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| T314005604 | Lockheed Martin Librascope Corporation (USA) |
| 50551-4 PRIMARY | Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc (USA) |
NSN 5930-00-009-8917 is a Switch Subassembly, manufactured by Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-009-8917 has 3 manufacturer part numbers on file: 2550955-4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), T314005604 (Lockheed Martin Librascope Corporation), 50551-4 (Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5315-01-149-6220, 2990-01-547-7242. Verify interchangeability with system specifications before substitution.
Key specifications for 50551-4: Overall Length: 2.168 INCHES NOMINAL IN; Special Features: LEGEND ON HOUSING LENS,DIRECT; MAJ COMP: BOOT1, HOUSING 1. 0 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.