The Switch,thermostatic, cataloged under National Stock Number 5930-00-148-4808, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ampex Data Systems Corp Computer Products Div. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-00-148-4808 |
| Primary Part Number | 021-135 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Ampex Data Systems Corp Computer Products Div |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | TAB, SOLDER LUG |
| Mounting Method | FLANGE |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED |
| Contact Stimulus Rating | 75.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE |
| 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 |
|---|---|
| 021-135 PRIMARY | Ampex Data Systems Corp Computer Products Div (USA) |
| Reference | Meaning |
|---|---|
| C6786-2-133 | 5/2 Secondary reference U.S. Government activity |
NSN 5930-00-148-4808 is a Switch,thermostatic, manufactured by Ampex Data Systems Corp Computer Products Div, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-148-4808 has 1 manufacturer part number on file: 021-135 (Ampex Data Systems Corp Computer Products Div).
2 possible matches (shared part number, not a government interchangeability claim): 6515-01-499-6711, 4820-01-546-0490. Verify interchangeability with system specifications before substitution.
Key specifications for 021-135: Contact Action Stimulus: INCREASE; Terminal Type: TAB, SOLDER LUG; Mounting Method: FLANGE; Nonpile-Up Contact Arrangement: 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED. 6 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.