The Pulley,groove, cataloged under National Stock Number 3020-01-134-3792, 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 28 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-134-3792 |
| Primary Part Number | 12268912 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 1.377 INCHES MINIMUM AND 1.378 INCHES MAXIMUM AA END IN |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| First End Length From Groove to End | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM AA END IN |
| Groove Shape | V |
| Outside Diameter | 7.560 INCHES NOMINAL IN |
| Spline Length | 1.000 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Material Document and Classification | ASTM A148 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Pitch Diameter | 6.090 INCHES NOMINAL IN |
| Spline Major Diameter | 0.948 INCHES NOMINAL IN |
| Groove Depth | 0.815 INCHES MINIMUM AND 0.949 INCHES MAXIMUM IN |
| Bore Type | INVOLUTE SPLINE |
| Bearings | NOT INCLUDED |
| Counterbore Depth | 0.406 INCHES NOMINAL AND 0.220 INCHES NOMINAL IN |
| Groove Quantity | 2 |
| Counterbore Location | BOTH ENDS |
| V Groove Angle in Deg | 36.0 |
| Spline Pressure Angle in Deg | 30.0 |
| Protruding Hub Characteristic | GROOVED |
| Spline Quantity | 14 |
| Counterbore Diameter | 1.094 INCHES NOMINAL AND 1.128 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Surface Treatment | ENAMEL |
| 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 |
|---|---|
| 12268912 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-01-134-3792 is a Pulley,groove, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-134-3792 has 1 manufacturer part number on file: 12268912 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12268912: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.377 INCHES MINIMUM AND 1.378 INCHES MAXIMUM AA END IN; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED. 28 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.