The Pulley,groove, cataloged under National Stock Number 3020-01-212-3475, 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 Indal Technologies Inc. Government technical data includes 25 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-212-3475 |
| Primary Part Number | 6547C252-1 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Indal Technologies Inc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 1.000 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.688 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Flange Thickness | 0.188 INCHES NOMINAL IN |
| Groove Radius | 0.130 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 1.000 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 1.500 INCHES NOMINAL BOTH ENDS IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Flange Outside Diameter | 2.370 INCHES NOMINAL IN |
| Face Width | 0.188 INCHES NOMINAL IN |
| Groove Width | 1.312 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 |
|---|---|
| 6547C252-1 PRIMARY | Indal Technologies Inc (CAN) |
| Reference | Meaning |
|---|---|
| 6547C252-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 6547C252 | D/9 Drawing number reference only Indal Technologies Inc |
NSN 3020-01-212-3475 is a Pulley,groove, manufactured by Indal Technologies Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-212-3475 has 1 manufacturer part number on file: 6547C252-1 (Indal Technologies Inc).
Key specifications for 6547C252-1: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.000 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED. 25 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.