The Switch,proximity, cataloged under National Stock Number 5930-01-202-4244, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Topworx Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Switch,proximity |
| FSC / FSG | 5930 — Switches (FSG 59) |
| Manufacturers | Topworx Inc (CAGE 04553) |
| Parameter | Value |
|---|---|
| NSN | 5930-01-202-4244 |
| Primary Part Number | 11-51518-00 |
| Item Name | Switch,proximity |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Topworx Inc |
| 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 |
|---|---|
| 11-51518-00 PRIMARY | Topworx Inc (USA) |
| Reference | Meaning |
|---|---|
| TM SG18-LR-MMA-0 | 5/1 Secondary reference Naval Sea Systems Command |
| S151510-0145 | 5/9 Secondary reference Topworx Inc |
| 43-500E | 5/9 Secondary reference Topworx Inc |
| 11-51510-00 | 5/9 Secondary reference Topworx Inc |
| S-10-0146 | 5/1 Secondary reference Topworx Inc |
| 151510 | 5/9 Secondary reference Topworx Inc |
NSN 5930-01-202-4244 is a Switch,proximity, manufactured by Topworx Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-202-4244 has 1 manufacturer part number on file: 11-51518-00 (Topworx Inc).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-482-1098. 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.