The Sprocket Wheel, cataloged under National Stock Number 3020-00-407-7745, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-407-7745 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Outside Diameter | 3.500 INCHES NOMINAL AA END IN |
| Bore Length | 0.920 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.750 INCHES NOMINAL IN |
| Asa Standard Chain Number | 60W W |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Pitch Diameter | 5.032 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 21 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Center of Bore to Bottom of Keyway | 1.550 INCHES NOMINAL IN |
| Distance From Hub End to Flange End | 0.453 INCHES NOMINAL AA END IN |
| Keyway Width | 0.376 INCHES NOMINAL IN |
| Bore Diameter | 2.749 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN |
| Material | STEEL |
| Furnished Items | KEYING FACILITY |
| Face Width | 0.469 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 |
| Reference | Meaning |
|---|---|
| SC-D-1637L | D/9 Drawing number reference only U.S. Government activity |
| SC-D-1637LPT19 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-407-7745 is a Sprocket Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-407-7745: Hub Outside Diameter: 3.500 INCHES NOMINAL AA END IN; Bore Length: 0.920 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN; Design Form: PLAIN; Tooth Pitch: 0.750 INCHES NOMINAL IN. 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.
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.