The Switch,code Indicating Wheel, cataloged under National Stock Number 5930-01-226-7770, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-226-7770 |
| Primary Part Number | 7946A38H02 |
| Item Name | Switch,code Indicating Wheel |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Actuator Type | THUMBWHEEL ALL ACTUATORS |
| Terminal Type | PRINTED CIRCUIT |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY |
| 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 | 0.140 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Contact Arrangement Truth Table | BCD, 1 POLE - 10 POSITIONS EACH SECTION |
| Style Designator | RECTANGULAR INLINE INDICATING |
| Longest Vertical Distance Between Mounting Centers | 1.200 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Individual Section Quantity | 4 |
| Features Provided | ILLUMINATED AND RFI SHIELDING |
| Readout Indicator Marking | 0,1,2,3,4,5,6,7,8,9 EACH SECTION |
| Contact Voltage Rating in Volts | 28.0 AC AT SEA LEVEL |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL |
| Color | WHITE EACH INDICATOR MARKING |
| Color | BLACK EACH INDICATOR BACKGROUND |
| Color | BLACK EACH BODY |
| Color | CLEAR EACH LAMP |
| Switch Actuator Indexing Position Quantity | 10 ALL ACTUATORS |
| Longest Horizontal Distance Between Mounting Centers | 3.330 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Hazardous Locations/environmental Protection | EXPLOSION PROOF AND MOISTURE RESISTANT |
| 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 |
|---|---|
| 7946A38H02 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 09-W-0339 | Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch (USA) |
| Reference | Meaning |
|---|---|
| 9W339 | 5/9 Secondary reference Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch |
NSN 5930-01-226-7770 is a Switch,code Indicating Wheel, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-226-7770 has 2 manufacturer part numbers on file: 7946A38H02 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 09-W-0339 (Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch).
1 possible match (shared part number, not a government interchangeability claim): 7050-01-570-3182. Verify interchangeability with system specifications before substitution.
Key specifications for 7946A38H02: Overall Height: 2.760 INCHES NOMINAL IN; Actuator Type: THUMBWHEEL ALL ACTUATORS; 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.