The Gear,spur, cataloged under National Stock Number 3020-01-433-2582, 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 Palfinger Marine Usa, Llc. Government technical data includes 25 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-433-2582 |
| Primary Part Number | M903169 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Palfinger Marine Usa, Llc |
| Status | ACTIVE |
| Keyway Nominal Width | 12.7 MILLIMETERS SECOND END MM |
| Bore Nominal Diameter | 47.6 MILLIMETERS SECOND END MM |
| Hub Nominal Diameter | 100.0 MILLIMETERS SECOND END MM |
| Teeth Quantity | 33 |
| Body Style | PLAIN, SOLID |
| Bore Style | THREAD SERIES DESIGNATOR FULLY THREADED FIRST END |
| Bore Style | W/ KEYWAY SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 134.0 MILLIMETERS SECOND END MM |
| Nominal Distance Between Body Face and Protruding Hub End | 141.0 MILLIMETERS FIRST END MM |
| First Step Nominal Length | 110.0 MILLIMETERS FIRST END MM |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 82.5 MILLIMETERS NOMINAL MM |
| First Step Nominal Diameter | 70.0 MILLIMETERS FIRST END MM |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | 1 GROOVE SECOND END |
| End Nominal Length | 180.0 MILLIMETERS FIRST END MM |
| Nominal Outside Diameter | 87.5 MILLIMETERS MM |
| Nominal Distance From Bore Center to Keyway Bottom | 29.5 MILLIMETERS SECOND END MM |
| Nominal Distance From End to First Groove | 124.0 MILLIMETERS SECOND END MM |
| End Nominal Diameter | 35.0 MILLIMETERS FIRST END MM |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| First Groove Nominal Diameter | 62.0 MILLIMETERS SECOND END MM |
| First Groove Nominal Width | 10.0 MILLIMETERS SECOND END MM |
| Face Nominal Width | 50.0 MILLIMETERS MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3020-01-433-2582 is a Gear,spur, manufactured by Palfinger Marine Usa, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-433-2582 has 2 manufacturer part numbers on file: M903169 (Palfinger Marine Usa, Llc), D408483-E (Palfinger Marine Usa, Llc).
Key specifications for M903169: Keyway Nominal Width: 12.7 MILLIMETERS SECOND END MM; Bore Nominal Diameter: 47.6 MILLIMETERS SECOND END MM; Hub Nominal Diameter: 100.0 MILLIMETERS SECOND END MM; Teeth Quantity: 33. 25 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.