The Switch,lock,ignition, cataloged under National Stock Number 2920-00-127-9052, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Deere & Company Dba Deere John Co. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-127-9052 |
| Primary Part Number | AT21880 |
| Item Name | Switch,lock,ignition |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Deere & Company Dba Deere John Co |
| Status | ACTIVE |
| Bushing Length | 0.260 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN |
| Body Diameter | 1.830 INCHES NOMINAL IN |
| Inclosure Type | FULLY INCLOSED |
| Body Style | BUSHING MOUNTED |
| Body Length | 1.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| AT21880 PRIMARY | Deere & Company Dba Deere John Co (USA) |
| 956-4113 PRIMARY | Cole Hersee Company (USA) |
| Reference | Meaning |
|---|---|
| AT21880 | 5/9 Secondary reference Deere & Co |
| AT 21880 | 5/9 Secondary reference Deere & Company Dba John Deere Dubuque Works Div John Deere Dubuque Works |
NSN 2920-00-127-9052 is a Switch,lock,ignition, manufactured by Deere & Company Dba Deere John Co, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-127-9052 has 2 manufacturer part numbers on file: AT21880 (Deere & Company Dba Deere John Co), 956-4113 (Cole Hersee Company).
Key specifications for AT21880: Bushing Length: 0.260 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN; Body Diameter: 1.830 INCHES NOMINAL IN; Inclosure Type: FULLY INCLOSED; Body Style: BUSHING MOUNTED. 5 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.