The Guard,switch, cataloged under National Stock Number 5930-01-643-4945, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Espey Mfg and Electronics Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Guard,switch |
| FSC / FSG | 5930 — Switches (FSG 59) |
| Manufacturers | Espey Mfg and Electronics Corp (CAGE 20950) |
| Parameter | Value |
|---|---|
| NSN | 5930-01-643-4945 |
| Primary Part Number | 90749 |
| Item Name | Guard,switch |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Espey Mfg and Electronics Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| 90749 PRIMARY | Espey Mfg and Electronics Corp (USA) |
NSN 5930-01-643-4945 is a Guard,switch, manufactured by Espey Mfg and Electronics Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-643-4945 has 1 manufacturer part number on file: 90749 (Espey Mfg and Electronics Corp).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-645-4781. Verify interchangeability with system specifications before substitution.
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.