The Sprocket Wheel, cataloged under National Stock Number 3020-01-142-8171, 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 Emerson Electric Co Browning Mfg Div. Government technical data includes 19 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 | 3020-01-142-8171 |
| Primary Part Number | HN35B13 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Hub Outside Diameter | 1.156 INCHES NOMINAL AA END IN |
| Bore Length | 0.750 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Lubrication Mode | NO VISIBLE MEANS |
| Tooth Pitch | 0.375 INCHES NOMINAL IN |
| Asa Standard Chain Number | 35 |
| Outside Diameter | 1.750 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 1.567 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 Hub End to Flange End | 0.582 INCHES NOMINAL AA END IN |
| Bore Diameter | 0.500 INCHES NOMINAL IN |
| Material | STEEL |
| Furnished Items | BORE BEARING |
| Face Width | 0.168 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 |
|---|---|
| HN35B13 PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
NSN 3020-01-142-8171 is a Sprocket Wheel, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-142-8171 has 1 manufacturer part number on file: HN35B13 (Emerson Electric Co Browning Mfg Div).
Key specifications for HN35B13: Hub Outside Diameter: 1.156 INCHES NOMINAL AA END IN; Bore Length: 0.750 INCHES NOMINAL IN; Design Form: PLAIN; Lubrication Mode: NO VISIBLE MEANS. 19 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.