The Switch Subassembly, cataloged under National Stock Number 5930-00-439-3546, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sef Power. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-439-3546 |
| Primary Part Number | 2D139 |
| Item Name | Switch Subassembly |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Sef Power |
| Status | ACTIVE |
| Component Type and Quantity | 1 HOUSING AND 2 CONTACT AND 3 INSULATOR AND 1 PLATE |
| 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 |
|---|---|
| 2D139 | Sef Power (FRA) |
| 5800583-674101-132 | Hensoldt Sensors Gmbh (DEU) |
| 2D139 | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| 2D139 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5930-00-439-3546 is a Switch Subassembly, manufactured by Sef Power, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-439-3546 has 3 manufacturer part numbers on file: 2D139 (Sef Power), 5800583-674101-132 (Hensoldt Sensors Gmbh), 2D139 (Satair A/s).
Key specifications for 2D139: Overall Height: 1.040 INCHES MAXIMUM IN; Component Type and Quantity: 1 HOUSING AND 2 CONTACT AND 3 INSULATOR AND 1 PLATE; Overall Length: 0.780 INCHES NOMINAL IN; Overall Width: 0.656 INCHES MAXIMUM IN. 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.