The Switch,rotary, cataloged under National Stock Number 5930-01-366-3657, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-366-3657 |
| Primary Part Number | 740102PC78 |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. |
| Status | ACTIVE |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICALNONPILE-UP SYMMETRICAL |
| Terminal Type | SCREWSCREW |
| Precious Material | SILVERSILVER |
| Style Designator | TAP, CIRCUIT SELECTORTAP, CIRCUIT SELECTOR |
| Individual Section Quantity | 11 |
| Precious Material and Location | CONTACTS SILVER AND CONTACTS SILVER AND TERMINALS SILVERTERMINALS SILVER |
| 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 |
|---|---|
| 740102PC78 PRIMARY | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 44301G | 5/2 Secondary reference U.S. Government activity |
NSN 5930-01-366-3657 is a Switch,rotary, manufactured by L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc., classified under FSC 5930, Switches. Status: active.
NSN 5930-01-366-3657 has 1 manufacturer part number on file: 740102PC78 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-526-7924. Verify interchangeability with system specifications before substitution.
Key specifications for 740102PC78: Overall Height: 3.000 INCHES NOMINAL3.000 INCHES NOMINAL IN; Switch Contact Basic Design: NONPILE-UP SYMMETRICALNONPILE-UP SYMMETRICAL; Terminal Type: SCREWSCREW; Precious Material: SILVERSILVER. 6 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.