The Switch,lock,ignition, cataloged under National Stock Number 2920-01-030-9183, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Cole Hersee Company. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-01-030-9183 |
| Primary Part Number | 956-8111 |
| Item Name | Switch,lock,ignition |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Cole Hersee Company |
| Status | ACTIVE |
| Bushing Length | 0.370 INCHES NOMINAL IN |
| Body Diameter | 1.830 INCHES NOMINAL IN |
| Inclosure Type | FULLY INCLOSED |
| Body Style | BUSHING MOUNTED |
| Nominal Thread Size | 1.000 INCHES IN |
| Body Length | 1.850 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 24 |
| Terminal Type and Quantity | 3 SCREW |
| Thread Series Designator | UNS |
| Hazardous Locations/environmental Protection | WEATHERPROOF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 956-8111 PRIMARY | Cole Hersee Company (USA) |
NSN 2920-01-030-9183 is a Switch,lock,ignition, manufactured by Cole Hersee Company, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-01-030-9183 has 1 manufacturer part number on file: 956-8111 (Cole Hersee Company).
Key specifications for 956-8111: Bushing Length: 0.370 INCHES NOMINAL IN; Body Diameter: 1.830 INCHES NOMINAL IN; Inclosure Type: FULLY INCLOSED; Body Style: BUSHING MOUNTED. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.