The Switch,mercury, cataloged under National Stock Number 5930-00-034-3953, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Telemechanics Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5930-00-034-3953 |
| Primary Part Number | 162958 |
| Item Name | Switch,mercury |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Body Diameter | 0.325 INCHES NOMINAL IN |
| Body Style | UNCASED |
| Mounting Method | TERMINAL |
| Body Length | 1.286 INCHES NOMINAL IN |
| Terminal Type and Quantity | 2 WIRE LEAD |
| 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 |
|---|---|
| 162958 | Lucent Technologies Inc Corporate Headquarters (USA) |
| 162958 PRIMARY | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 162958 | 5/9 Secondary reference American Telephone and Telegraph Co |
| 162958 | 5/9 Secondary reference Lucent Technologies Inc Dba Federal Marketing Group |
NSN 5930-00-034-3953 is a Switch,mercury, manufactured by Telemechanics Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-034-3953 has 2 manufacturer part numbers on file: 162958 (Lucent Technologies Inc Corporate Headquarters), 162958 (Telemechanics Inc).
1 possible match (shared part number, not a government interchangeability claim): 1285-01-021-6384. Verify interchangeability with system specifications before substitution.
Key specifications for 162958: Body Diameter: 0.325 INCHES NOMINAL IN; Body Style: UNCASED; Mounting Method: TERMINAL; Body Length: 1.286 INCHES NOMINAL IN. 5 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.