The Switch,code Indicating Wheel, cataloged under National Stock Number 5930-01-181-4638, 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 Electro Switch Corp Div Digitran a Unit of Electro Switch. Government technical data includes 22 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-01-181-4638 |
| Primary Part Number | 8874-1 |
| Item Name | Switch,code Indicating Wheel |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch |
| Status | ACTIVE |
| Actuator Type | THUMBWHEEL SINGLE ACTUATOR |
| Terminal Type | PRINTED CIRCUIT |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY |
| Precious Material | GOLD |
| Contact Load Current Rating | 125.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL |
| Contact Load Current Rating | 125.0 MILLIAMPERES RESISTIVE LOAD DC AT SEA LEVEL |
| Mounting Method | BRACKET(S) AND UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Unthreaded Mounting Hole Diameter | 0.100 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Contact Arrangement Truth Table | BCD, 1 POLE - 16 POSITIONS SINGLE SECTION |
| Style Designator | RECTANGULAR INLINE INDICATING |
| Longest Vertical Distance Between Mounting Centers | 0.900 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Individual Section Quantity | 1 |
| Readout Indicator Marking | 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 SINGLE SECTION |
| Contact Voltage Rating in Volts | 28.0 AC AT SEA LEVEL |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL |
| Color | BLACK SINGLE BODY |
| Color | WHITE SINGLE INDICATOR MARKING |
| Color | BLACK SINGLE INDICATOR BACKGROUND |
| Precious Material and Location | CIRCUIT BOARD SURFACES GOLD |
| Operating Temp Range | -65.0 TO 85.0 CELSIUS DEGC |
| Switch Actuator Indexing Position Quantity | 16 SINGLE ACTUATOR |
| Longest Horizontal Distance Between Mounting Centers | 1.090 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| 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 |
|---|---|
| 8874-1 | Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch (USA) |
| Reference | Meaning |
|---|---|
| 7240-4020 | 5/2 Secondary reference U.S. Government activity |
| 7240-4020 | 3/9 Design control — primary reference Alliedsignal Inc Ocean Systems Div |
| 7240-4020 | 5/9 Secondary reference Science Applications Intl Corp Range Systems |
NSN 5930-01-181-4638 is a Switch,code Indicating Wheel, manufactured by Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-181-4638 has 1 manufacturer part number on file: 8874-1 (Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch).
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-379-8099, 6515-01-439-0215. Verify interchangeability with system specifications before substitution.
Key specifications for 8874-1: Overall Height: 1.785 INCHES NOMINAL IN; Actuator Type: THUMBWHEEL SINGLE ACTUATOR; Terminal Type: PRINTED CIRCUIT; Mounting Facility Pattern: FOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY. 22 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.