The Switch,electronic, cataloged under National Stock Number 5930-01-661-7903, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Topworx, Inc. Dba Top Works. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5930-01-661-7903 |
| Primary Part Number | 77-13568-B2 |
| Item Name | Switch,electronic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Topworx, Inc. Dba Top Works |
| 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 |
|---|---|
| 77-13568-B2 PRIMARY | Topworx, Inc. Dba Top Works (USA) |
| Reference | Meaning |
|---|---|
| 77-13528-B2 | 5/9 Secondary reference General Atomics Div General Atomics Electromagnetic Systems |
| 3.25CC-2HKTS24ACX26.0 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division |
| 34000D1560352 | D/9 Drawing number reference only General Atomics Div General Atomics Electromagnetic Systems |
| 77-13568-B2 | 5/9 Secondary reference General Atomics Div General Atomics Electromagnetic Systems |
NSN 5930-01-661-7903 is a Switch,electronic, manufactured by Topworx, Inc. Dba Top Works, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-661-7903 has 1 manufacturer part number on file: 77-13568-B2 (Topworx, Inc. Dba Top Works).
1 possible match (shared part number, not a government interchangeability claim): 1650-01-725-7532. Verify interchangeability with system specifications before substitution.
Key specifications for 77-13568-B2: Overall Length: 2.50 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: LEVERLESS LIMIT SWITCH, MODEL 77; End Item Identification: TENSION CYLINDER. 0 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.