The Switch Section,rotary, cataloged under National Stock Number 5930-00-548-4072, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-548-4072 |
| Primary Part Number | 51-B-2548-2 |
| Item Name | Switch Section,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Switch Contact Basic Design | NONPILE-UP SYMMETRICAL |
| Terminal Type | TAB, SOLDER LUG |
| Precious Material | SILVER |
| Contact Load Current Rating | 2.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL |
| Contact Load Current Rating | 1.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Mounting Method | STRUT SINGLE MOUNTING FACILITY |
| Pole Quantity | 2 SINGLE SECTION REAR |
| Style Designator | SWITCH SECTION, ROTARY |
| Contact Switching Action | BREAKS BEFORE MAKES SINGLE SECTION REAR |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL |
| Contact Voltage Rating in Volts | 110.4 AC AT SEA LEVEL |
| Precious Material and Location | CONTACTS SILVER |
| Throw Quantity | 5 SINGLE SECTION REAR |
| 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 |
|---|---|
| 51-B-2548-2 PRIMARY | Westinghouse Electric Corp (USA) |
| 51-B-2548-2 | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA) |
NSN 5930-00-548-4072 is a Switch Section,rotary, manufactured by Westinghouse Electric Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-548-4072 has 2 manufacturer part numbers on file: 51-B-2548-2 (Westinghouse Electric Corp), 51-B-2548-2 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch).
Key specifications for 51-B-2548-2: Overall Height: 1.875 INCHES NOMINAL IN; Switch Contact Basic Design: NONPILE-UP SYMMETRICAL; Terminal Type: TAB, SOLDER LUG; Precious Material: SILVER. 13 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.