The Sprocket Wheel, cataloged under National Stock Number 3020-00-738-6774, 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 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-738-6774 |
| Primary Part Number | 4067-45 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hornet Acquisitionco, Llc Dba Onboard Systems |
| Status | ACTIVE |
| Hub Outside Diameter | 0.812 INCHES NOMINAL AA END IN |
| Hub Outside Diameter | 0.750 INCHES NOMINAL BB END IN |
| Bore Length | 0.906 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.250 INCHES NOMINAL IN |
| Asa Standard Chain Number | 23 |
| Outside Diameter | 2.768 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | AISI 4620 ASSN STD SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 2.630 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 33 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Hub End to Flange End | 0.043 INCHES NOMINAL BB END IN |
| Distance From Hub End to Flange End | 0.753 INCHES NOMINAL AA END IN |
| Bore Diameter | 0.626 INCHES NOMINAL IN |
| Material | STEEL COMP 4620 |
| Furnished Items | LIGHTENING HOLE |
| Face Width | 0.110 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4067-45 PRIMARY | Hornet Acquisitionco, Llc Dba Onboard Systems (USA) |
| Reference | Meaning |
|---|---|
| 4067C45 | 5/9 Secondary reference U.S. Government activity |
| 4067-45 | 3/9 Design control — primary reference Goodrich Corporation Dba Trw Lucas Aerospace |
NSN 3020-00-738-6774 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 3020-00-738-6774 has 1 manufacturer part number on file: 4067-45 (Hornet Acquisitionco, Llc Dba Onboard Systems).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-377-3527. Verify interchangeability with system specifications before substitution.
Key specifications for 4067-45: Hub Outside Diameter: 0.812 INCHES NOMINAL AA END IN; Hub Outside Diameter: 0.750 INCHES NOMINAL BB END IN; Bore Length: 0.906 INCHES NOMINAL IN; Design Form: PLAIN. 21 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.
NSN 3020-00-738-6774 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.