The Pulley,groove, cataloged under National Stock Number 3020-00-294-4570, 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 Raytheon Company Dba Raytheon Co. Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-294-4570 |
| Primary Part Number | YC1953-1004P2REV6 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 2.000 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Securing Method | THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.063 INCHES NOMINAL IN |
| Design Form | SPOKED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Groove Shape | V |
| Outside Diameter | 8.125 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Pitch Diameter | 8.000 INCHES MAXIMUM IN |
| Groove Depth | 0.250 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| V Groove Angle in Deg | 38.0 |
| Distance From Center of Bore to Bottom of Keyway | 0.480 INCHES NOMINAL IN |
| Securing Hole Quantity | 2 |
| Thread Size | 1/4-20 NC-2 |
| Keyway Width | 0.189 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Unable to Decode | UNABLE TO DECODE |
| Surface Treatment | ANODIZE |
| Distance From Outside Flange/rim to Hub End and Location | 0.500 INCHES NOMINAL BOTH ENDS IN |
| Hole Location | ONE HOLE LOCATED ON TOP OF KEYWAY,ONE HOLE 90 DEG FROM KEYWAY |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.750 INCHES MINIMUM AND 0.751 INCHES MAXIMUM IN |
| 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 |
|---|---|
| YC1953-1004P2REV6 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 2009P2 | 5/2 Secondary reference U.S. Government activity |
| YC1953-1004P2REV6 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 3020-00-294-4570 is a Pulley,groove, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-294-4570 has 1 manufacturer part number on file: YC1953-1004P2REV6 (Raytheon Company Dba Raytheon Co).
Key specifications for YC1953-1004P2REV6: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 2.000 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Securing Method: THREADED HOLE(S). 29 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.