The Gear,spur, cataloged under National Stock Number 3020-00-672-4426, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Hiller Aircraft Corporation. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3020-00-672-4426 |
| Primary Part Number | 20221-1 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Hiller Aircraft Corporation |
| Status | CANCELLED |
| Face Nominal Width | 0.670 INCHES IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Overall Length | 2.750 INCHES IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.665 INCHES FIRST END IN |
| Spline Quantity | 24 BOTH ENDS |
| Hub Nominal Diameter | 1.575 INCHES FIRST END IN |
| Style Designator | CONE SHAPE BODY, PROTRUDING HUBS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.415 INCHES SECOND END IN |
| Spline Pitch Diameter | 1.2000 INCHES NOMINAL BOTH ENDS IN |
| Pitch Diameter | 3.0000 INCHES NOMINAL IN |
| Bore Nominal Diameter | 1.203 INCHES BOTH ENDS IN |
| Nominal Outside Diameter | 3.124 INCHES IN |
| Hub Nominal Diameter | 0.940 INCHES SECOND END IN |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 3020-00-672-4426 is a Gear,spur, manufactured by Hiller Aircraft Corporation, classified under FSC 3020 (No Item Name Available). Status: cancelled.
NSN 3020-00-672-4426 has 3 cross-referenced part numbers: 20221-1 (Hiller Aircraft Corporation), 20221-1 (Defense & Development Enterprises Llc), 20221-1 (Triumph Thermal Systems - Maryland, Inc.).
There are 4 known substitutes for 3020-00-672-4426: 5133-00-435-3258, 3020-00-528-0513, 3010-01-109-9792 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20221-1: Face Nominal Width: 0.670 INCHES IN; Hub Style Designator: PLAIN BOTH ENDS; Nominal Overall Length: 2.750 INCHES IN; Nominal Distance Between Body Face and Protruding Hub End: 1.665 INCHES FIRST END IN. 14 total characteristics are documented in the Federal Logistics Information System.
NSN 3020-00-672-4426 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.