The Sprocket Wheel, cataloged under National Stock Number 3020-01-238-8302, 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 Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-238-8302 |
| Primary Part Number | 014502-501 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| Status | ACTIVE |
| Spline Minor Diameter | 0.528 INCHES NOMINAL IN |
| Hub Outside Diameter | 0.780 INCHES MINIMUM AA END IN |
| Hub Outside Diameter | 2.083 INCHES MAXIMUM BB END IN |
| Securing Method | DRILLED HOLE |
| Design Form | PLAIN |
| Outside Diameter | 4.920 INCHES NOMINAL IN |
| Spline Length | 0.600 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 4.777 INCHES NOMINAL IN |
| Spline Major Diameter | 0.668 INCHES MINIMUM AND 0.669 INCHES MAXIMUM IN |
| Bore Type | INVOLUTE SPLINE |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 60 |
| Spline Pressure Angle in Deg | 30.0 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Spline Quantity | 1 |
| Distance From Hub End to Flange End | 0.610 INCHES MAXIMUM BB END IN |
| Distance From Hub End to Flange End | 1.900 INCHES MINIMUM AA END IN |
| Securing Hole Quantity | 5 |
| Drilled Hole Diameter | 0.193 INCHES NOMINAL IN |
| Hole Location | ON SPROCKET FACE |
| Material | STEEL COMP 4140 |
| Furnished Items | LIGHTENING HOLE AND BORE BEARING |
| Face Width | 0.110 INCHES NOMINAL IN |
| Spline Pitch Diameter | 0.625 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 |
|---|---|
| 014502-501 PRIMARY | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 014502-501 | 3/9 Design control — primary reference Meggitt Defense Systems, Inc. Dba Meggitt Western Design |
NSN 3020-01-238-8302 is a Sprocket Wheel, manufactured by Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-238-8302 has 1 manufacturer part number on file: 014502-501 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).
Key specifications for 014502-501: Spline Minor Diameter: 0.528 INCHES NOMINAL IN; Hub Outside Diameter: 0.780 INCHES MINIMUM AA END IN; Hub Outside Diameter: 2.083 INCHES MAXIMUM BB END IN; Securing Method: DRILLED HOLE. 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.