The Pulley,groove, cataloged under National Stock Number 3020-00-088-7745, 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 De Havilland Aircraft of Canada Limited. Government technical data includes 27 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 | 3020-00-088-7745 |
| Primary Part Number | C4PM10243-1 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | De Havilland Aircraft of Canada Limited |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 1.500 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Split Hub Feature | INCLUDED |
| Bore Length | 0.400 INCHES NOMINAL IN |
| Design Form | SPOKED |
| Groove Radius | 0.090 INCHES NOMINAL IN |
| Outside Diameter | 5.300 INCHES NOMINAL IN |
| Spline Length | 0.400 INCHES NOMINAL IN |
| Hub Split Location | THROUGH ONE WALL |
| Style Designator | WEBBED OR SPOKED |
| Material Document and Classification | QQ-A-601, COMP 16, T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.650 INCHES NOMINAL IN |
| Groove Depth | 0.220 INCHES NOMINAL IN |
| Bore Type | STRAIGHT SPLINE |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Spline Quantity | 13 |
| Unable to Decode | UNABLE TO DECODE |
| Minor Diameter | 0.5625 INCHES NOMINAL SPLINE IN |
| Counterbore Feature | NOT INCLUDED |
| Material | ALUMINUM ALLOY 520.0 OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Clamping Bolt Quantity | 1 |
| Face Width | 0.400 INCHES NOMINAL IN |
| Groove Width | 0.316 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 |
|---|---|
| C4PM10243-1 PRIMARY | De Havilland Aircraft of Canada Limited (CAN) |
NSN 3020-00-088-7745 is a Pulley,groove, manufactured by De Havilland Aircraft of Canada Limited, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-088-7745 has 1 manufacturer part number on file: C4PM10243-1 (De Havilland Aircraft of Canada Limited).
Key specifications for C4PM10243-1: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.500 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Split Hub Feature: INCLUDED. 27 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.