The Sprocket Wheel, cataloged under National Stock Number 3020-01-436-8666, 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 Westmont Industries Llc Div Westmont. Government technical data includes 24 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-436-8666 |
| Primary Part Number | 9834A10000 ITEM10 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Westmont Industries Llc Div Westmont |
| Status | ACTIVE |
| Hub Outside Diameter | 6.0000 INCHES NOMINAL BOTH ENDS IN |
| Bore Length | 5.0000 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Teeth Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| Tooth Pitch | 1.2500 INCHES NOMINAL IN |
| Asa Standard Chain Number | 100-3 |
| Outside Diameter | 24.0000 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 22.8570 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 3 |
| Teeth Quantity Per Row | 40 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | ROCKWELL |
| Distance From Center of Bore to Bottom of Keyway | 0.9380 INCHES NOMINAL IN |
| Distance From Hub End to Flange End | 0.7575 INCHES NOMINAL BOTH ENDS IN |
| Center to Center Distance Between Teeth Rows | 1.4080 INCHES NOMINAL IN |
| Keyway Width | 0.3750 INCHES NOMINAL IN |
| Bore Diameter | 1.5000 INCHES NOMINAL IN |
| Material | STEEL |
| Furnished Items | KEYING FACILITY |
| Face Width | 3.4850 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 |
|---|---|
| 9834A10000 ITEM10 | Westmont Industries Llc Div Westmont (USA) |
| Reference | Meaning |
|---|---|
| E100C40 1-1/2IN.BORE | 3/9 Design control — primary reference Martin Sprocket and Gear Inc |
| E100C40-1.50IN | C/1 Advisory reference — outside the item-of-supply concept Martin Sprocket and Gear Inc |
| RC100-3 | 5/1 Secondary reference Martin Sprocket and Gear Inc |
NSN 3020-01-436-8666 is a Sprocket Wheel, manufactured by Westmont Industries Llc Div Westmont, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-436-8666 has 1 manufacturer part number on file: 9834A10000 ITEM10 (Westmont Industries Llc Div Westmont).
Key specifications for 9834A10000 ITEM10: Hub Outside Diameter: 6.0000 INCHES NOMINAL BOTH ENDS IN; Bore Length: 5.0000 INCHES NOMINAL IN; Design Form: WEBBED; Teeth Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM. 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.