The Sprocket Wheel, cataloged under National Stock Number 3020-01-322-0104, 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 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-322-0104 |
| Primary Part Number | 5544173 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Spline Minor Diameter | 0.438 INCHES NOMINAL IN |
| Hub Outside Diameter | 0.630 INCHES NOMINAL BB END IN |
| Hub Outside Diameter | 0.686 INCHES NOMINAL AA END IN |
| Design Form | WEBBED |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Spline Length | 1.100 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| Spline Major Diameter | 0.537 INCHES NOMINAL IN |
| Bore Type | INVOLUTE SPLINE |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 5 |
| Spline Pressure Angle in Deg | 30.0 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Spline Quantity | 15 |
| Distance From Hub End to Flange End | 0.270 INCHES NOMINAL BB END IN |
| Distance From Hub End to Flange End | 0.587 INCHES NOMINAL AA END IN |
| Material | STEEL COMP 630 |
| Face Width | 0.130 INCHES NOMINAL IN |
| Spline Pitch Diameter | 0.469 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 |
NSN 3020-01-322-0104 is a Sprocket Wheel, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-322-0104 has 2 manufacturer part numbers on file: 5544173 (Naval Sea Systems Command), 5544173 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 5544173: Spline Minor Diameter: 0.438 INCHES NOMINAL IN; Hub Outside Diameter: 0.630 INCHES NOMINAL BB END IN; Hub Outside Diameter: 0.686 INCHES NOMINAL AA END IN; Design Form: WEBBED. 21 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.