The Gear,spur, cataloged under National Stock Number 3020-01-260-0673, 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 Lake Shore Systems, Inc.. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-260-0673 |
| Primary Part Number | 33603 PC 42 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.500 INCHES BOTH ENDS IN |
| Teeth Quantity | 96 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.375 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 4.0000 INCHES NOMINAL IN |
| Hub Style Designator | PINNED FIRST END |
| Nominal Outside Diameter | 4.083 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | PLASTIC OVERALL |
| Face Nominal Width | 0.312 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 |
|---|---|
| 33603 PC 42 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 802-4759598 PIECE 41 | 5/9 Secondary reference General Dynamics Motion Control Llc |
| 802-4759598 | D/9 Drawing number reference only U.S. Government activity |
| 802-4759598 PIECE 41 | 5/9 Secondary reference Secs Inc |
| 802-4759598 PIECE 41 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-01-260-0673 is a Gear,spur, manufactured by Lake Shore Systems, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-260-0673 has 1 manufacturer part number on file: 33603 PC 42 (Lake Shore Systems, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-260-0674, 3020-01-260-0675. Verify interchangeability with system specifications before substitution.
Key specifications for 33603 PC 42: Bore Nominal Diameter: 0.500 INCHES BOTH ENDS IN; Teeth Quantity: 96; Body Style: PLAIN, SOLID; Bore Style: W/ KEYWAY BOTH ENDS. 12 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.