The Pulley,groove, cataloged under National Stock Number 3020-00-972-0549, 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 Telemechanics 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-972-0549 |
| Primary Part Number | 146313 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.286 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | U |
| Outside Diameter | 5.500 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 5.374 INCHES NOMINAL IN |
| Groove Depth | 0.126 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.312 INCHES NOMINAL IN |
| Material | PLASTIC PHENOLIC OVERALL |
| Face Width | 0.286 INCHES NOMINAL IN |
| Groove Width | 0.155 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 |
| Part Number | Manufacturer |
|---|---|
| 146313 PRIMARY | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 146313 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 3020-00-972-0549 is a Pulley,groove, manufactured by Telemechanics Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-972-0549 has 1 manufacturer part number on file: 146313 (Telemechanics Inc).
Key specifications for 146313: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Bore Length: 0.286 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.