The Gear,spur, cataloged under National Stock Number 3020-00-752-1006, 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 25 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-752-1006 |
| Primary Part Number | 7521006 |
| 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 | 2.428 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.750 INCHES FIRST END IN |
| Teeth Quantity | 45 |
| Body Style | WEBBED, SOLID |
| Counterbore Nominal Diameter | 2.625 INCHES FIRST END IN |
| Bore Style | INVOLUTE SPLINE SECOND END |
| Bore Style | W/COUNTERBORE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.604 INCHES FIRST END IN |
| Hardness Rating | 59.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 1.734 INCHES IN |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 7.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | 1 GROOVE FIRST END |
| Spline Quantity | 15 BOTH ENDS |
| Nominal Outside Diameter | 7.803 INCHES IN |
| Nominal Distance From End to First Groove | 0.218 INCHES FIRST END IN |
| Pressure Angle | 17.5000 DEGREES |
| Material | STEEL COMP 8620H OVERALL |
| First Groove Nominal Diameter | 3.122 INCHES FIRST END IN |
| Counterbore Nominal Depth | 0.250 INCHES FIRST END IN |
| First Groove Nominal Width | 0.384 INCHES FIRST END IN |
| Spline Pitch Diameter | 2.1428 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 1.125 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 |
|---|---|
| 7521006 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| TG200-2 | 5/9 Secondary reference Spalla Inc |
| 914096 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 2340T2 | 5/9 Secondary reference Diamond Reo Truck Co |
| 30-8-35 | 3/2 Design control — primary reference U.S. Government activity |
| 3020007521006 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 3020-00-752-1006 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 3020-00-752-1006 has 1 manufacturer part number on file: 7521006 (U S Army Tank Automotive Command Amsta-Im-Mm).
3 possible matches (shared part number, not a government interchangeability claim): 2835-01-146-3816, 6750-01-427-6984, 4730-01-506-8301. Verify interchangeability with system specifications before substitution.
Key specifications for 7521006: Bore Nominal Diameter: 2.428 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.750 INCHES FIRST END IN; Teeth Quantity: 45; Body Style: WEBBED, SOLID. 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.