The Gear,spur, cataloged under National Stock Number 3020-00-340-7628, 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 Alamo Aircraft, Ltd.. Government technical data includes 26 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-340-7628 |
| Primary Part Number | 7334-1 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Alamo Aircraft, Ltd. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.501 INCHES BOTH ENDS IN |
| Teeth Quantity | 24 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 1.136 INCHES SECOND END IN |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.623 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.504 INCHES FIRST END IN |
| First Step Nominal Length | 0.400 INCHES FIRST END IN |
| First Step Nominal Length | 0.153 INCHES SECOND END IN |
| Nominal Overall Length | 2.7270 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS6294 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.938 INCHES SECOND END IN |
| First Step Nominal Diameter | 1.770 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP BOTH ENDS |
| End Nominal Length | 0.475 INCHES SECOND END IN |
| End Nominal Length | 1.113 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.140 INCHES IN |
| End Nominal Diameter | 0.787 INCHES SECOND END IN |
| End Nominal Diameter | 1.574 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 1.940 INCHES SECOND END IN |
| Face Nominal Width | 0.600 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 |
|---|---|
| 7334-1 PRIMARY | Alamo Aircraft, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| 7334-1 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
NSN 3020-00-340-7628 is a Gear,spur, manufactured by Alamo Aircraft, Ltd., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-340-7628 has 1 manufacturer part number on file: 7334-1 (Alamo Aircraft, Ltd.).
6 possible matches (shared part number, not a government interchangeability claim): 2590-00-384-8095, 4820-01-231-9784, 4820-01-331-0163. Verify interchangeability with system specifications before substitution.
Key specifications for 7334-1: Bore Nominal Diameter: 0.501 INCHES BOTH ENDS IN; Teeth Quantity: 24; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 1.136 INCHES SECOND END IN. 26 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.