The Switch,reed, cataloged under National Stock Number 5930-00-421-8931, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is General Dynamics Mission Systems, Inc.. Government technical data includes 10 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-421-8931 |
| Primary Part Number | 33-451982-1 |
| Item Name | Switch,reed |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | General Dynamics Mission Systems, Inc. |
| Status | ACTIVE |
| Body Diameter | 0.130 INCHES MAXIMUM IN |
| Body Style | UNCASED |
| Switch Actuating Force | 20.0 AMPERE-TURNS NOMINAL |
| Switch Release Force | 5.0 AMPERE-TURNS NOMINAL |
| Electrical Power Rating at Maximum DC Voltage Rating | 3.0 WATTS |
| Body Length | 0.625 INCHES MAXIMUM IN |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT |
| Maximum Voltage Rating in Volts | 28.0 DC |
| Terminal Type and Quantity | 3 WIRE LEAD |
| Contact Load Current Rating at Maximum Rated Voltage | 250.000 MILLIAMPERES RESISTIVE DC |
| 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 |
|---|---|
| 2109-03321 | Safran Aerosystems Ex Safran Aerotechnics Plaisir (FRA) |
| MRGDT | Celduc Relais Sa (FRA) |
| 33-451982-1 PRIMARY | General Dynamics Mission Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| MRGDT | 5/9 Secondary reference Hamlin Inc |
NSN 5930-00-421-8931 is a Switch,reed, manufactured by General Dynamics Mission Systems, Inc., classified under FSC 5930, Switches. Status: active.
NSN 5930-00-421-8931 has 3 manufacturer part numbers on file: 2109-03321 (Safran Aerosystems Ex Safran Aerotechnics Plaisir), MRGDT (Celduc Relais Sa), 33-451982-1 (General Dynamics Mission Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5930-00-615-3936. Verify interchangeability with system specifications before substitution.
Key specifications for 33-451982-1: Body Diameter: 0.130 INCHES MAXIMUM IN; Body Style: UNCASED; Switch Actuating Force: 20.0 AMPERE-TURNS NOMINAL; Switch Release Force: 5.0 AMPERE-TURNS NOMINAL. 10 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.