The Switch,pressure, cataloged under National Stock Number 5930-01-340-4504, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Switch,pressure |
| FSC / FSG | 5930 — Switches (FSG 59) |
| Manufacturers | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (CAGE 39VG9); Engine Systems, Inc. (CAGE 16505) |
| Parameter | Value |
|---|---|
| NSN | 5930-01-340-4504 |
| Primary Part Number | 40040320 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 40040320 PRIMARY | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA) |
| 40040320 | Engine Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 8460801 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| 40040320 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| 40040320 | 5/9 Secondary reference Engine Systems, Inc. Dba Marine Systems Div Marine Systems, Inc. |
| 40040320 | 5/9 Secondary reference Valley Power Services Inc |
NSN 5930-01-340-4504 is a Switch,pressure, manufactured by Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-340-4504 has 2 manufacturer part numbers on file: 40040320 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc), 40040320 (Engine Systems, Inc.).
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.