The Gear,spur, cataloged under National Stock Number 3020-01-074-9629, 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 24 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-074-9629 |
| Primary Part Number | 12267254 |
| 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 | 1.776 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.320 INCHES SECOND END IN |
| Teeth Quantity | 29 |
| Body Style | WEBBED, SOLID |
| Counterbore Nominal Diameter | 1.875 INCHES COUNTERBORE FIRST END IN |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Bore Style | INVOLUTE SPLINE SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.490 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.100 INCHES FIRST END IN |
| First Step Nominal Length | 0.155 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 7.2500 INCHES NOMINAL IN |
| First Step Nominal Diameter | 3.130 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Spline Quantity | 27 SECOND END |
| End Nominal Length | 0.945 INCHES FIRST END IN |
| Nominal Outside Diameter | 7.740 INCHES IN |
| End Nominal Diameter | 2.756 INCHES FIRST END IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.410 INCHES COUNTERBORE FIRST END IN |
| Spline Pitch Diameter | 1.6875 INCHES NOMINAL SECOND END IN |
| Face Nominal Width | 0.750 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 |
NSN 3020-01-074-9629 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 3020-01-074-9629 has 2 manufacturer part numbers on file: 12267254 (U S Army Tank Automotive Command Amsta-Im-Mm), DAX12807 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 12267254: Bore Nominal Diameter: 1.776 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.320 INCHES SECOND END IN; Teeth Quantity: 29; Body Style: WEBBED, SOLID. 24 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 3020-01-074-9629 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.