The Switch Section,rotary, cataloged under National Stock Number 5930-00-644-7763, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-00-644-7763 |
| Primary Part Number | B-508 |
| Item Name | Switch Section,rotary |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch |
| Status | ACTIVE |
| Switch Contact Basic Design | NONPILE-UP NONSYMMETRICAL |
| Mounting Method | STRUT SINGLE MOUNTING FACILITY |
| 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 |
|---|---|
| B-508 | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA) |
| Reference | Meaning |
|---|---|
| B-508 | 3/9 Design control — primary reference Rca Corp Government and Commercial Systems Commercial Commications Systems Div |
NSN 5930-00-644-7763 is a Switch Section,rotary, manufactured by Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-644-7763 has 1 manufacturer part number on file: B-508 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch).
3 possible matches (shared part number, not a government interchangeability claim): 5320-01-196-5971, 4010-01-285-6421, 6510-01-367-5274. Verify interchangeability with system specifications before substitution.
Key specifications for B-508: Switch Contact Basic Design: NONPILE-UP NONSYMMETRICAL; Mounting Method: STRUT SINGLE MOUNTING FACILITY. 2 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.