The Gear,spur, cataloged under National Stock Number 3020-00-752-8047, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 29 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-752-8047 |
| Primary Part Number | 7528047 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Bore Nominal Diameter | 3.377 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 4.450 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Recessed Hub End | 0.504 INCHES SECOND END IN |
| Teeth Quantity | 51 |
| Body Style | WEBBED, OFFSET, SOLID |
| Counterbore Nominal Diameter | 3.500 INCHES FIRST END IN |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Mounting Hole Type and Quantity | 4 PLAIN AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 1.629 INCHES FIRST END IN |
| First Step Nominal Length | 0.246 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 1.125 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Supplementary Features | STEEL,MIL-S-13048,FS-4817 |
| Nominal Overall Length | 4.504 INCHES IN |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Pitch Diameter | 12.7500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 5.188 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Spline Quantity | 26 BOTH ENDS |
| End Nominal Length | 1.875 INCHES FIRST END IN |
| Nominal Outside Diameter | 13.120 INCHES IN |
| End Nominal Diameter | 4.331 INCHES FIRST END IN |
| Pressure Angle | 25.0000 DEGREES |
| Bolt Hole Circle Nominal Diameter | 7.500 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Counterbore Nominal Depth | 0.656 INCHES FIRST END IN |
| Spline Pitch Diameter | 3.2500 INCHES NOMINAL BOTH ENDS IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 2.875 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 |
|---|---|
| 7528047 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-00-752-8047 is a Gear,spur, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-752-8047 has 1 manufacturer part number on file: 7528047 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-705-9265. Verify interchangeability with system specifications before substitution.
Key specifications for 7528047: Bore Nominal Diameter: 3.377 INCHES BOTH ENDS IN; Hub Nominal Diameter: 4.450 INCHES SECOND END IN; Nominal Distance Between Body Face and Recessed Hub End: 0.504 INCHES SECOND END IN; Teeth Quantity: 51. 29 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.