The Pulley,groove, cataloged under National Stock Number 3020-00-442-9800, 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 Rolls-Royce Solutions America Inc. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-442-9800 |
| Primary Part Number | 5169905 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | NOT INCLUDED |
| Securing Method | THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | OFFSET |
| Groove Shape | V |
| Outside Diameter | 9.000 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Groove Depth | 0.578 INCHES NOMINAL IN |
| Groove Quantity | 2 |
| V Groove Angle in Deg | 38.0 |
| Securing Hole Quantity | 6 |
| Thread Size | 3/8-16 |
| Distance From Outside Flange/rim to Hub End and Location | 0.781 INCHES NOMINAL AA END AND 0.375 INCHES NOMINAL BB END IN |
| Hole Location | EQUALLY SPACED ON 5.750 IN.DIA BOLT CIRCLE IN |
| Material | IRON CAST OVERALL |
| Face Width | 1.844 INCHES NOMINAL IN |
| Groove Width | 0.656 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 |
|---|---|
| 5169905 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
| Reference | Meaning |
|---|---|
| 5169905 | 5/9 Secondary reference General Motors Corp |
NSN 3020-00-442-9800 is a Pulley,groove, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-442-9800 has 1 manufacturer part number on file: 5169905 (Rolls-Royce Solutions America Inc).
1 possible match (shared part number, not a government interchangeability claim): 5340-00-449-9644. Verify interchangeability with system specifications before substitution.
Key specifications for 5169905: Integral Cooling Vane: NOT INCLUDED; Bore Feature: NOT INCLUDED; Securing Method: THREADED HOLE(S); Split Hub Feature: NOT INCLUDED. 21 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.