The Gear,spur, cataloged under National Stock Number 3020-00-217-1391, 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 20 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-217-1391 |
| Primary Part Number | 196431 |
| 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 | 1.434 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.650 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE A |
| Teeth Quantity | 41 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.160 INCHES BOTH ENDS IN |
| Hardness Rating | 81.0 ROCKWELL A MINIMUM AND 85.0 ROCKWELL A MAXIMUM TEETH |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM HUB |
| Style Designator | CONE SHAPE BODY, PROTRUDING HUBS |
| Material Document and Classification | AMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 5.0584 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 21 BOTH ENDS |
| Nominal Outside Diameter | 5.268 INCHES IN |
| Pressure Angle | 22.8333 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Spline Pitch Diameter | 1.3125 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.360 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 |
|---|---|
| 196431 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 3020-00-217-1391 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 3020-00-217-1391 has 1 manufacturer part number on file: 196431 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-247-2639, 5340-01-293-5566. Verify interchangeability with system specifications before substitution.
Key specifications for 196431: Bore Nominal Diameter: 1.434 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.650 INCHES BOTH ENDS IN; Backlash Designation: GRADE A; Teeth Quantity: 41. 20 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.