The Pulley,groove, cataloged under National Stock Number 3020-01-657-6668, 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 Carl Stahl Sava Industries, Inc.. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-657-6668 |
| Primary Part Number | CPS4088 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Carl Stahl Sava Industries, Inc. |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Design Form | PLAIN |
| Groove Radius | 0.095 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 1.250 INCHES NOMINAL IN |
| Shaft Size for Which Designed | 0.250 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.375 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 2 |
| Bearing Type | BEARING ROLLER |
| Surface Treatment | ZINC |
| Counterbore Feature | NOT INCLUDED |
| Material | STEEL OVERALL |
| Face Width | 0.375 INCHES NOMINAL IN |
| Groove Width | 0.250 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 |
|---|---|
| CPS4088 PRIMARY | Carl Stahl Sava Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 12580560 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 3020-01-657-6668 is a Pulley,groove, manufactured by Carl Stahl Sava Industries, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-657-6668 has 1 manufacturer part number on file: CPS4088 (Carl Stahl Sava Industries, Inc.).
Key specifications for CPS4088: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Design Form: PLAIN; Groove Radius: 0.095 INCHES NOMINAL IN. 19 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.