The Sprocket Wheel, cataloged under National Stock Number 3020-01-215-6599, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 22 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 | 3020-01-215-6599 |
| Primary Part Number | 11669857 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Hub Outside Diameter | 3.250 INCHES NOMINAL AA END IN |
| First Step Diameter | 4.562 INCHES NOMINAL AA END IN |
| Bore Length | 1.875 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Teeth Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM |
| Tooth Pitch | 1.000 INCHES NOMINAL IN |
| Outside Diameter | 5.875 INCHES NOMINAL IN |
| Second Step Length | 0.232 INCHES NOMINAL AA END IN |
| Style Designator | PLAIN |
| Metallic Hardness Rating and Location | 45.0 ROCKWELL C MINIMUM BODY AND 55.0 ROCKWELL C MAXIMUM BODY |
| Material Document and Classification | SAE 1141 ASSN STD SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 5.759 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 18 |
| Protruding Hub Characteristic | STEPPED |
| Hardness Rating Test Method | ROCKWELL |
| Distance From Hub End to Flange End | 1.480 INCHES NOMINAL AA END IN |
| First Step Length | 1.218 INCHES NOMINAL AA END IN |
| Bore Diameter | 1.754 INCHES NOMINAL IN |
| Material | STEEL COMP 1141 |
| Face Width | 0.545 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 |
|---|---|
| 11669857 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-01-215-6599 is a Sprocket Wheel, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-215-6599 has 1 manufacturer part number on file: 11669857 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11669857: Hub Outside Diameter: 3.250 INCHES NOMINAL AA END IN; First Step Diameter: 4.562 INCHES NOMINAL AA END IN; Bore Length: 1.875 INCHES NOMINAL IN; Design Form: WEBBED. 22 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.