The Switch,reed, cataloged under National Stock Number 5930-01-035-8516, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Setra Systems, Inc. Dba Gems Sensors. Government technical data includes 5 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. 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 | 5930-01-035-8516 |
| Primary Part Number | 17939 |
| Item Name | Switch,reed |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Setra Systems, Inc. Dba Gems Sensors |
| Status | ACTIVE |
| Body Diameter | 0.312 INCHES NOMINAL IN |
| Body Style | UNCASED |
| Body Length | 2.062 INCHES NOMINAL IN |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT |
| Terminal Type and Quantity | 2 WIRE LEAD |
| 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 |
|---|---|
| 17939 PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
NSN 5930-01-035-8516 is a Switch,reed, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-035-8516 has 1 manufacturer part number on file: 17939 (Setra Systems, Inc. Dba Gems Sensors).
2 possible matches (shared part number, not a government interchangeability claim): 4130-01-459-9192, 5305-01-669-3290. Verify interchangeability with system specifications before substitution.
Key specifications for 17939: Body Diameter: 0.312 INCHES NOMINAL IN; Body Style: UNCASED; Body Length: 2.062 INCHES NOMINAL IN; Nonpile-Up Contact Arrangement: 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT. 5 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.