The Pulley,groove, cataloged under National Stock Number 3020-01-355-6240, 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 Carlisle Power Transmission Products Inc. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-355-6240 |
| Primary Part Number | 1BQ36 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Carlisle Power Transmission Products Inc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | THREADED HOLE(S) AND DRILLED HOLE |
| Split Hub Feature | NOT INCLUDED |
| Design Form | PLAIN |
| Groove Shape | V |
| Outside Diameter | 3.850 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 3.600 INCHES NOMINAL IN |
| Groove Depth | 0.490 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| V Groove Angle in Deg | 34.4 |
| Securing Hole Quantity | 6 |
| Bolt Circle Diameter | 2.250 INCHES NOMINAL IN |
| Thread Size | 1/4-20 |
| Hole Location | EQUALLY SPACED ON PULLEY SURFACE ON 2.250 IN.DIA BC IN |
| Counterbore Feature | NOT INCLUDED |
| Material | IRON OVERALL |
| Face Width | 0.750 INCHES NOMINAL IN |
| Groove Width | 0.494 INCHES NOMINAL IN |
| Securing Location | PULLEY SURFACE |
| 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 |
|---|---|
| 1BQ36 PRIMARY | Carlisle Power Transmission Products Inc (USA) |
| 12562999 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 1BQ36 | Parker Machine and Engineering Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1AQ36 | 3/9 Design control — primary reference Carlisle Power Transmission Products Inc |
| 1AQ36 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-01-355-6240 is a Pulley,groove, manufactured by Carlisle Power Transmission Products Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-355-6240 has 3 manufacturer part numbers on file: 1BQ36 (Carlisle Power Transmission Products Inc), 12562999 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 1BQ36 (Parker Machine and Engineering Inc.).
Key specifications for 1BQ36: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: THREADED HOLE(S) AND DRILLED HOLE; Split Hub Feature: NOT INCLUDED. 24 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.