The Pulley,groove, cataloged under National Stock Number 3020-00-055-7572, 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 26 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 | 3020-00-055-7572 |
| Primary Part Number | 7748902 |
| 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 |
| Bore Feature | INCLUDED |
| Securing Method | DRILLED HOLE |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.074 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Outside Diameter | 7.162 INCHES MINIMUM AND 7.212 INCHES MAXIMUM IN |
| Style Designator | WEBBED OR SPOKED |
| Material Document and Classification | AISI C1006 ASSN STD SINGLE MATERIAL RESPONSE OR AISI C1008 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Groove Depth | 0.545 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| V Groove Angle in Deg | 36.0 |
| Securing Hole Quantity | 6 |
| Bolt Circle Diameter | 2.810 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.344 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM |
| Hole Location | EQUALLY SPACED AROUND BORE |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 2.251 INCHES MINIMUM AND 2.253 INCHES MAXIMUM IN |
| Material | STEEL COMP 1006 OR STEEL COMP 1008 OVERALL |
| Face Width | 0.724 INCHES NOMINAL IN |
| Groove Width | 0.500 INCHES NOMINAL IN |
| Securing Location | AA END |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 7748902 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3020-00-055-7572 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 3020-00-055-7572 has 1 manufacturer part number on file: 7748902 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7748902: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: DRILLED HOLE; Split Hub Feature: NOT INCLUDED. 26 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.