The Sprocket Wheel, cataloged under National Stock Number 3020-01-278-9943, 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 Naval Sea Systems Command. Government technical data includes 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-278-9943 |
| Primary Part Number | 5224323-1 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Hub Outside Diameter | 2.000 INCHES NOMINAL AA END IN |
| Securing Method | SETSCREW |
| Bore Length | 1.000 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.625 INCHES NOMINAL IN |
| Asa Standard Chain Number | 50 |
| Outside Diameter | 4.120 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 3.797 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Counterbore Depth | 0.250 INCHES NOMINAL IN |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 19 |
| Counterbore Location | AA END |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Counterbore Diameter | 1.380 INCHES NOMINAL IN |
| Distance From Hub End to Flange End | 0.657 INCHES NOMINAL AA END IN |
| Bore Diameter | 1.250 INCHES NOMINAL IN |
| Material | STEEL |
| Furnished Items | COUNTERBORE |
| Face Width | 0.343 INCHES NOMINAL IN |
| Securing Location | AA END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5224323-1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5224323 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-278-9943 is a Sprocket Wheel, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-278-9943 has 1 manufacturer part number on file: 5224323-1 (Naval Sea Systems Command).
Key specifications for 5224323-1: Hub Outside Diameter: 2.000 INCHES NOMINAL AA END IN; Securing Method: SETSCREW; Bore Length: 1.000 INCHES NOMINAL IN; Design Form: PLAIN. 23 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.
NSN 3020-01-278-9943 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.