The Switch,flow, cataloged under National Stock Number 5930-01-573-3540, 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 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-573-3540 |
| Primary Part Number | 218939 |
| Item Name | Switch,flow |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Setra Systems, Inc. Dba Gems Sensors |
| Status | ACTIVE |
| Style Designator | CYLINDRICAL |
| Media for Which Designed | LIQUID |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 218939 PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
| BA-200-PT-BR-2.50-005.00-NO | Setra Systems, Inc. Dba Gems Sensors (USA) |
NSN 5930-01-573-3540 is a Switch,flow, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-573-3540 has 2 manufacturer part numbers on file: 218939 (Setra Systems, Inc. Dba Gems Sensors), BA-200-PT-BR-2.50-005.00-NO (Setra Systems, Inc. Dba Gems Sensors).
Key specifications for 218939: Style Designator: CYLINDRICAL; Special Features: THIS IS THE STEM, SWITCH, SHUTTLE, SPRING AND MAGNET REPLACEMENT PARTS; MEDIA: SALT WATER; Media for Which Designed: LIQUID; Part Name Assigned by Controlling Agency: BONNET ASSEMBLY. 2 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.
NSN 5930-01-573-3540 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.