The Switch,rotary, cataloged under National Stock Number 5930-01-202-7588, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Pollak Joseph Corp. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-202-7588 |
| Primary Part Number | 51-904EP |
| Item Name | Switch,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Pollak Joseph Corp |
| Status | ACTIVE |
| Terminal Type | THREADED STUD |
| Overall Diameter | 2.625 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Features Provided | ACTUATOR KNOB AND METALLIC INCLOSURE |
| Contact Voltage Rating in Volts | 6.0 LOWEST DC VOLTAGE RATING AT SEA LEVEL |
| Contact Voltage Rating in Volts | 36.0 HIGHEST DC VOLTAGE RATING AT SEA LEVEL |
| Precious Material and Location | CONTACTS SILVER |
| Switch Actuator Indexing Position Quantity | 2 SINGLE ACTUATOR |
| 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 |
|---|---|
| 51-904EP PRIMARY | Pollak Joseph Corp (USA) |
| Reference | Meaning |
|---|---|
| 51-904EP30 | C/1 Advisory reference — outside the item-of-supply concept Pollak Joseph Corp |
| 51-304 | 3/9 Design control — primary reference Pollak Joseph Corp |
NSN 5930-01-202-7588 is a Switch,rotary, manufactured by Pollak Joseph Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-202-7588 has 1 manufacturer part number on file: 51-904EP (Pollak Joseph Corp).
6 possible matches (shared part number, not a government interchangeability claim): 9540-01-213-5536, 4240-01-251-3269, 5133-01-360-7733. Verify interchangeability with system specifications before substitution.
Key specifications for 51-904EP: Terminal Type: THREADED STUD; Overall Diameter: 2.625 INCHES NOMINAL IN; Precious Material: SILVER; Overall Length: 4.500 INCHES NOMINAL IN. 8 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.