The Pulley,groove, cataloged under National Stock Number 3020-01-475-3033, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-475-3033 |
| Primary Part Number | 12469128 |
| 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 |
| Distance From Center of Bore to Top of Key | 0.987 INCHES MINIMUM AND 0.992 INCHES MAXIMUM IN |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.710 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Key Width | 0.252 INCHES NOMINAL IN |
| Groove Shape | V |
| Outside Diameter | 4.294 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Shaft Size for Which Designed | 0.875 INCHES NOMINAL IN |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Groove Depth | 0.115 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 8 |
| Protruding Hub Characteristic | PLAIN |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.574 INCHES NOMINAL AA END AND 0.414 INCHES NOMINAL BB END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.8754 INCHES MINIMUM AND 0.8759 INCHES MAXIMUM IN |
| Material | IRON CAST OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Furnished Items | KEYING FACILITY |
| Face Width | 1.550 INCHES NOMINAL IN |
| Groove Width | 0.140 INCHES NOMINAL IN |
| Lightening Hole | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3020-01-475-3033 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 3020-01-475-3033 has 2 manufacturer part numbers on file: 12469128 (Am General Llc), 12469128 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12469128: Distance From Center of Bore to Top of Key: 0.987 INCHES MINIMUM AND 0.992 INCHES MAXIMUM IN; Integral Cooling Vane: NOT INCLUDED; 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.