The Gear,spur, cataloged under National Stock Number 3020-00-101-4855, 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 Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-101-4855 |
| Primary Part Number | 3323282 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.3144 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.375 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.500 INCHES FIRST END IN |
| Teeth Quantity | 35 |
| Body Style | WEBBED, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.375 INCHES FIRST END IN |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Pitch Diameter | 5.3363 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Nominal Outside Diameter | 5.5845 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.8461 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 2.000 INCHES 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 |
|---|---|
| 3323282 PRIMARY | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA) |
| Reference | Meaning |
|---|---|
| 3323282 | 5/9 Secondary reference General Motors Corp |
| 3323282 | 3/9 Design control — primary reference General Motors Corp Electro-Motive Div |
NSN 3020-00-101-4855 is a Gear,spur, manufactured by Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-101-4855 has 1 manufacturer part number on file: 3323282 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc).
Key specifications for 3323282: Keyway Nominal Width: 0.3144 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.375 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.500 INCHES FIRST END IN; Teeth Quantity: 35. 18 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.