The Sprocket Wheel, cataloged under National Stock Number 3020-00-741-1971, 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 Am General Llc. Government technical data includes 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-741-1971 |
| Primary Part Number | 118200 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| Hub Outside Diameter | 1.312 INCHES NOMINAL BOTH ENDS IN |
| First Step Diameter | 16.687 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | THREADED HOLE(S) |
| Bore Length | 0.875 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN |
| Design Form | PLAIN |
| Key Width | 0.250 INCHES NOMINAL IN |
| Tooth Pitch | 0.500 INCHES NOMINAL IN |
| Asa Standard Chain Number | 41 |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-S-633, FS1045-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 2.247 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 14 |
| Protruding Hub Characteristic | STEPPED |
| Hardness Rating Test Method | NOT RATED |
| Distance From Center of Bore to Bottom of Keyway | 0.617 INCHES MINIMUM AND 0.618 INCHES MAXIMUM IN |
| Distance From Hub End to Flange End | 0.594 INCHES MINIMUM AND 0.596 INCHES MAXIMUM BOTH ENDS IN |
| First Step Length | 0.062 INCHES NOMINAL BOTH ENDS IN |
| Securing Hole Quantity | 1 |
| Thread Size | 14 IN. - 20 IN |
| Hole Location | LOCATED 90 DEG FROM KEYWAY |
| Bore Diameter | 0.985 INCHES MINIMUM AND 0.986 INCHES MAXIMUM IN |
| Material | STEEL COMP 1045 |
| Furnished Items | KEYING FACILITY |
| Face Width | 0.281 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 |
NSN 3020-00-741-1971 is a Sprocket Wheel, manufactured by Am General Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-741-1971 has 2 manufacturer part numbers on file: 118200 (Am General Llc), 7411971 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 118200: Hub Outside Diameter: 1.312 INCHES NOMINAL BOTH ENDS IN; First Step Diameter: 16.687 INCHES NOMINAL BOTH ENDS IN; Securing Method: THREADED HOLE(S); Bore Length: 0.875 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN. 29 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.