The Gear Sector,spur, cataloged under National Stock Number 3020-00-211-2430, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Raytheon Technical Services Company. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-211-2430 |
| Primary Part Number | 81855 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Raytheon Technical Services Company |
| Status | ACTIVE |
| Backlash Designation | GRADE D |
| Pressure Angle | 20.0000 DEGREES |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Overall Length | 1.000 INCHES IN |
| Nominal Outside Radius | 4.3940 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| Precision Classification | QUALITY NUMBER 9 |
| Nominal Distance Between Body Face and Protruding Hub End | 0.6250 INCHES FIRST END IN |
| Mounting Hole Type and Quantity | 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Hub Nominal Diameter | 2.2500 INCHES FIRST END IN |
| Face Nominal Width | 0.375 INCHES IN |
| Hub Style Designator | PINNED FIRST END |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Tooth Form | STANDARD |
| Attachment Method | MOUNTING HOLE |
| Bore Nominal Diameter | 1.250 INCHES BOTH ENDS IN |
| Mounting Hole Nominal Thread Size | 0.250 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Teeth Quantity | 84 |
| Bore Style | PLAIN BOTH ENDS |
| Arc Nominal Length | 5.2500 INCHES IN |
| Mounting Hole Thread Quantity Per Inch | 20 TRANSVERSELY THROUGH HUB FIRST END |
| Pitch Radius | 4.3750 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-211-2430 is a Gear Sector,spur, manufactured by Raytheon Technical Services Company, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-211-2430 has 2 cross-referenced part numbers: 81855 (Raytheon Technical Services Company), 81855 (Cae Usa Inc.).
There are 4 known substitutes for 3020-00-211-2430: 1650-00-917-5263, 5133-01-052-1496, 5305-01-150-1524 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 81855: Backlash Designation: GRADE D; Pressure Angle: 20.0000 DEGREES; Mounting Hole Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END; Nominal Overall Length: 1.000 INCHES IN. 23 total characteristics are documented in the Federal Logistics Information System.