The Sprocket Wheel, cataloged under National Stock Number 3020-00-089-2363, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Hornet Acquisitionco, Llc Dba Onboard Systems. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-089-2363 |
| Primary Part Number | 4067-42 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hornet Acquisitionco, Llc Dba Onboard Systems |
| Status | ACTIVE |
| FSC Application Data | WINCH,ACFT MTD |
| Hub Outside Diameter | 0.811 INCHES MINIMUM AND 0.812 INCHES MAXIMUM AA END IN |
| Hub Outside Diameter | 0.812 INCHES NOMINAL BB END IN |
| First Step Diameter | 0.937 INCHES NOMINAL AA END IN |
| Bore Length | 0.901 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN |
| Design Form | PLAIN |
| Teeth Hardness Rating | 27.0 ROCKWELL C MINIMUM |
| Tooth Pitch | 0.250 INCHES NOMINAL IN |
| Asa Standard Chain Number | 25 |
| Outside Diameter | 1.246 INCHES NOMINAL IN |
| Second Step Length | 0.125 INCHES NOMINAL AA END IN |
| Style Designator | PLAIN |
| Metallic Hardness Rating and Location | 55.0 ROCKWELL C MINIMUM HUB |
| Material Document and Classification | MIL-H-7493,COMP 4620,COND E4 MIL SPEC SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 1.124 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 14 |
| Protruding Hub Characteristic | STEPPED OR GROOVED |
| Hardness Rating Test Method | ROCKWELL |
| First Step Length | 0.360 INCHES MINIMUM AND 0.365 INCHES MAXIMUM AA END IN |
| Surface Treatment | CADMIUM |
| First End Groove Diameter | 0.812 INCHES NOMINAL AA END IN |
| Bore Diameter | 0.625 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN |
| Material | STEEL COMP 4620 |
| Face Width | 0.103 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| First End Groove Width | 0.277 INCHES MINIMUM AND 0.282 INCHES MAXIMUM AA END 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 |
|---|---|
| 4067-42 PRIMARY | Hornet Acquisitionco, Llc Dba Onboard Systems (USA) |
| Reference | Meaning |
|---|---|
| 4067C42 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-089-2363 is a Sprocket Wheel, manufactured by Hornet Acquisitionco, Llc Dba Onboard Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-089-2363 has 1 manufacturer part number on file: 4067-42 (Hornet Acquisitionco, Llc Dba Onboard Systems).
2 possible matches (shared part number, not a government interchangeability claim): 3020-00-678-3988, 1560-01-373-0243. Verify interchangeability with system specifications before substitution.
Key specifications for 4067-42: FSC Application Data: WINCH,ACFT MTD; Hub Outside Diameter: 0.811 INCHES MINIMUM AND 0.812 INCHES MAXIMUM AA END IN; Hub Outside Diameter: 0.812 INCHES NOMINAL BB END IN; First Step Diameter: 0.937 INCHES NOMINAL AA END IN. 27 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.