The Sprocket Wheel, cataloged under National Stock Number 3020-01-323-6053, 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 Milcor Inc. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-323-6053 |
| Primary Part Number | SN47787/21-02-01-055 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Milcor Inc |
| Status | ACTIVE |
| Hub Outside Diameter | 4.000 INCHES NOMINAL AA END IN |
| Bore Length | 1.625 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 1.000 INCHES NOMINAL IN |
| Asa Standard Chain Number | 80 |
| Outside Diameter | 6.270 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Pitch Diameter | 5.759 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 18 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Center of Bore to Bottom of Keyway | 1.192 INCHES NOMINAL IN |
| Distance From Hub End to Flange End | 1.062 INCHES NOMINAL AA END IN |
| Keyway Width | 0.375 INCHES NOMINAL IN |
| Bore Diameter | 1.438 INCHES NOMINAL IN |
| Material | STEEL |
| Furnished Items | KEYING FACILITY |
| Face Width | 0.575 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 |
|---|---|
| 80B18 1 7/16IN.BORE 3/8IN.KW | Emerson Electric Co Browning Mfg Div (USA) |
| SN47787/21-02-01-055 PRIMARY | Milcor Inc (USA) |
| Reference | Meaning |
|---|---|
| 80B18 | 5/1 Secondary reference Emerson Electric Co Browning Mfg Div |
NSN 3020-01-323-6053 is a Sprocket Wheel, manufactured by Milcor Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-323-6053 has 2 manufacturer part numbers on file: 80B18 1 7/16IN.BORE 3/8IN.KW (Emerson Electric Co Browning Mfg Div), SN47787/21-02-01-055 (Milcor Inc).
Key specifications for SN47787/21-02-01-055: Hub Outside Diameter: 4.000 INCHES NOMINAL AA END IN; Bore Length: 1.625 INCHES NOMINAL IN; Design Form: PLAIN; Tooth Pitch: 1.000 INCHES NOMINAL IN. 22 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.