The Gear,spur, cataloged under National Stock Number 3020-00-938-8982, 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 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-938-8982 |
| Primary Part Number | 570354 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.625 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.700 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.933 INCHES FIRST END IN |
| Teeth Quantity | 22 |
| Body Style | PLAIN, SOLID |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.170 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.040 INCHES SECOND END IN |
| Hardness Rating | 79.0 ROCKWELL C MINIMUM AND 85.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.2000 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 31 BOTH ENDS |
| Nominal Outside Diameter | 2.400 INCHES IN |
| Pressure Angle | 22.5000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.200 INCHES 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 |
|---|---|
| 570354 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 570354 | 3/9 Design control — primary reference Aero Gear Incorporated |
NSN 3020-00-938-8982 is a Gear,spur, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-938-8982 has 1 manufacturer part number on file: 570354 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 5950-00-984-1074. Verify interchangeability with system specifications before substitution.
Key specifications for 570354: Bore Nominal Diameter: 0.625 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.700 INCHES SECOND END IN; Hub Nominal Diameter: 0.933 INCHES FIRST END IN; Teeth Quantity: 22. 19 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.