The Pulley,groove, cataloged under National Stock Number 3020-01-146-8943, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-146-8943 |
| Primary Part Number | 12313982 |
| 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 |
| Split Hub Feature | NOT INCLUDED |
| Design Form | PLAIN |
| Groove Shape | V |
| Outside Diameter | 7.630 INCHES MINIMUM AND 7.670 INCHES MAXIMUM IN |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 6.940 INCHES NOMINAL IN |
| Groove Depth | 0.325 INCHES NOMINAL IN |
| Groove Quantity | 3 |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.940 INCHES NOMINAL AA END IN |
| Face Width | 1.810 INCHES NOMINAL IN |
| Lightening Hole | INCLUDED |
| 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 |
|---|---|
| 12313982 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12320975 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 3020-01-146-8943 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 3020-01-146-8943 has 1 manufacturer part number on file: 12313982 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12313982: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.377 INCHES MINIMUM AND 1.378 INCHES MAXIMUM AA END IN; Split Hub Feature: NOT INCLUDED; Design Form: PLAIN. 14 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.