The Gear,bevel, cataloged under National Stock Number 3020-00-856-4051, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-856-4051 |
| Primary Part Number | 457262 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.810 INCHES BOTH ENDS IN |
| Teeth Quantity | 34 |
| Pitch Angle | 28.5878 DEGREES |
| Tooth Direction | RIGHT |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Teeth Type | SPIRAL |
| Hardness Rating | 81.0 ROCKWELL A MINIMUM AND 85.0 ROCKWELL A MAXIMUM OVERALL |
| Material Document and Classification | AMS6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spline Quantity | 24 BOTH ENDS |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Spline Pitch Diameter | 0.7500 INCHES NOMINAL BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
NSN 3020-00-856-4051 is a Gear,bevel, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-856-4051 has 2 manufacturer part numbers on file: 457262 (Arrow Gear Llc), 457262 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 457262: Bore Nominal Diameter: 0.810 INCHES BOTH ENDS IN; Teeth Quantity: 34; Pitch Angle: 28.5878 DEGREES; Tooth Direction: RIGHT. 12 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 3020-00-856-4051 has DEMIL Code Q. 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.