The Sprocket Wheel, cataloged under National Stock Number 3020-00-844-8553, 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 Altra Industrial Motion Corp.. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-844-8553 |
| Primary Part Number | 40B13 3-4IN |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Hub Outside Diameter | 1.500 INCHES NOMINAL BOTH ENDS IN |
| Bore Length | 0.875 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Lubrication Mode | NO VISIBLE MEANS |
| Tooth Pitch | 0.500 INCHES NOMINAL IN |
| Asa Standard Chain Number | 40 |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Pitch Diameter | 2.090 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 13 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Center of Bore to Bottom of Keyway | 0.437 INCHES NOMINAL IN |
| Distance From Hub End to Flange End | 0.593 INCHES NOMINAL BOTH ENDS IN |
| Keyway Width | 0.125 INCHES NOMINAL IN |
| Bore Diameter | 0.750 INCHES NOMINAL IN |
| Material | STEEL |
| Furnished Items | KEYING FACILITY |
| Face Width | 0.281 INCHES NOMINAL IN |
| Furnished Items and Quantity | SETSCREW 1 |
| 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 |
|---|---|
| 1427AS141-3 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 40BSK13-1 | Rexnord Holdings Inc (USA) |
| 40B13 3-4IN PRIMARY | Altra Industrial Motion Corp. (USA) |
| 15006 | Altra Industrial Motion Corp. (USA) |
| Reference | Meaning |
|---|---|
| 13191029-11 | C/1 Advisory reference — outside the item-of-supply concept Altra Industrial Motion Corp. |
| 40BF13T-1 | 5/9 Secondary reference Diamond Chain Co Div of Amsted Industries Inc |
NSN 3020-00-844-8553 is a Sprocket Wheel, manufactured by Altra Industrial Motion Corp., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-844-8553 has 4 manufacturer part numbers on file: 1427AS141-3 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 40BSK13-1 (Rexnord Holdings Inc), 40B13 3-4IN (Altra Industrial Motion Corp.), 15006 (Altra Industrial Motion Corp.).
Key specifications for 40B13 3-4IN: Hub Outside Diameter: 1.500 INCHES NOMINAL BOTH ENDS IN; Bore Length: 0.875 INCHES NOMINAL IN; Design Form: PLAIN; Lubrication Mode: NO VISIBLE MEANS. 24 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.