The Switch,flow, cataloged under National Stock Number 5930-01-374-9323, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Modern Controls Corporation. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-374-9323 |
| Primary Part Number | 550-052 |
| Item Name | Switch,flow |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Modern Controls Corporation |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | WIRE LEAD |
| Overall Diameter | 21.800 INCHES NOMINAL IN |
| Thread Pitch in Millimeters | 0.25 SINGLE THREADED BUSHING |
| Mounting Method | BUSHING |
| Thread Length | 1.200 INCHES NOMINAL SINGLE THREADED BUSHING IN |
| Style Designator | CYLINDRICAL |
| Thread Direction | RIGHT-HAND SINGLE THREADED BUSHING |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED |
| Thread Quantity Per Inch | 24 SINGLE THREADED BUSHING |
| 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 |
|---|---|
| 550-052 | Modern Controls Corporation (USA) |
| Reference | Meaning |
|---|---|
| 112FW12-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5930-01-374-9323 is a Switch,flow, manufactured by Modern Controls Corporation, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-374-9323 has 1 manufacturer part number on file: 550-052 (Modern Controls Corporation).
Key specifications for 550-052: Contact Action Stimulus: INCREASE; Terminal Type: WIRE LEAD; Overall Diameter: 21.800 INCHES NOMINAL IN; Thread Pitch in Millimeters: 0.25 SINGLE THREADED BUSHING. 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.