The Pulley,groove, cataloged under National Stock Number 3020-00-089-2108, 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 29 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 | 3020-00-089-2108 |
| Primary Part Number | 10942830 |
| 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 | 1.750 INCHES NOMINAL BB END IN |
| Hub Outside Diameter | 1.287 INCHES MINIMUM AND 1.3779 INCHES MINIMUM AND 1.295 INCHES MAXIMUM AND 1.3783 INCHES MAXIMUM AA END IN |
| Split Hub Feature | NOT INCLUDED |
| Design Form | PLAIN |
| First End Length From Groove to End | 0.153 INCHES NOMINAL AA END IN |
| Outside Diameter | 7.562 INCHES NOMINAL IN |
| Spline Length | 1.000 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Pitch Diameter | 6.087 INCHES NOMINAL IN |
| Spline Major Diameter | 0.9375 INCHES MINIMUM AND 0.9485 INCHES MAXIMUM IN |
| Groove Depth | 0.6625 INCHES NOMINAL IN |
| Bore Type | STRAIGHT SPLINE OR INVOLUTE SPLINE |
| Bearings | NOT INCLUDED |
| Counterbore Depth | 0.4687 INCHES NOMINAL AND 1.347 INCHES NOMINAL IN |
| Groove Quantity | 2 |
| Counterbore Location | AA END |
| V Groove Angle in Deg | 36.000 |
| Spline Pressure Angle in Deg | 30.000 |
| Protruding Hub Characteristic | STEPPED OR GROOVED |
| Spline Quantity | 14 |
| Counterbore Diameter | 1.000 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE AND UNABLE TO DECODE AND UNABLE TO DECODE AND UNABLE TO DECODE |
| Surface Treatment | ENAMEL |
| Minor Diameter | 0.815 INCHES MINIMUM AND 0.900 INCHES MAXIMUM SPLINE IN |
| Counterbore Feature | INCLUDED |
| Unable to Decode | UNABLE TO DECODE |
| 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 |
|---|---|
| 10942830 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-00-089-2108 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 3020-00-089-2108 has 1 manufacturer part number on file: 10942830 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10942830: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.750 INCHES NOMINAL BB END IN; Hub Outside Diameter: 1.287 INCHES MINIMUM AND 1.3779 INCHES MINIMUM AND 1.295 INCHES MAXIMUM AND 1.3783 INCHES MAXIMUM AA END IN; Split Hub Feature: NOT INCLUDED. 29 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.