The Pulley,groove, cataloged under National Stock Number 3020-00-674-1867, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-674-1867 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 0.420 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.438 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN |
| Groove Shape | U |
| Outside Diameter | 1.750 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 1.400 INCHES NOMINAL IN |
| Groove Depth | 0.154 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 1 |
| Protruding Hub Characteristic | PLAIN |
| Bearing Type | BALL |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.058 INCHES NOMINAL BOTH ENDS IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.250 INCHES NOMINAL IN |
| Material | PLASTIC POLYAMIDE NYLON BODY |
| Material | STEEL HUB |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 0.316 INCHES MINIMUM AND 0.326 INCHES MAXIMUM IN |
| Groove Width | 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Lightening Hole | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AK3895 | 5/9 Secondary reference A and K Mfg Co Inc |
| 15600H13-432-1 | 5/2 Secondary reference U.S. Government activity |
| MR0H13-432-1 | 5/9 Secondary reference U.S. Government activity |
| 47-722-261-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-674-1867 is a Pulley,groove, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-674-1867: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 0.420 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Bearing Quantity: 1. 28 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.
NSN 3020-00-674-1867 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.