The Gear,spur, cataloged under National Stock Number 3020-00-753-9882, 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 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-753-9882 |
| Primary Part Number | 7539882 |
| 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 | 1.500 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.000 INCHES SECOND END IN |
| Hub Nominal Diameter | 1.960 INCHES FIRST END IN |
| Teeth Quantity | 69 |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Mounting Hole Type and Quantity | 3 PLAIN TRANSVERSELY THROUGH FACE |
| Nominal Distance Between Body Face and Protruding Hub End | 2.356 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.281 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Hardness Rating | 90.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OVERALL |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Material Document and Classification | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 11.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Spline Quantity | 14 BOTH ENDS |
| Nominal Outside Diameter | 12.207 INCHES IN |
| Nominal Distance From End to First Groove | 1.523 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| First Groove Nominal Diameter | 1.879 INCHES FIRST END IN |
| Bolt Hole Circle Nominal Diameter | 2.312 INCHES AXIALLY THROUGH HUB FIRST END IN |
| First Groove Nominal Width | 0.073 INCHES FIRST END IN |
| Spline Pitch Diameter | 1.4000 INCHES NOMINAL BOTH ENDS IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.500 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6764642 | General Motors Corp (USA) |
| 7539882 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 6764642 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 3020007539882 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 3020-00-753-9882 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 3020-00-753-9882 has 3 manufacturer part numbers on file: 6764642 (General Motors Corp), 7539882 (U S Army Tank Automotive Command Amsta-Im-Mm), 6764642 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 7539882: Bore Nominal Diameter: 1.500 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.000 INCHES SECOND END IN; Hub Nominal Diameter: 1.960 INCHES FIRST END IN; Teeth Quantity: 69. 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.
NSN 3020-00-753-9882 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.