The Gear,spur, cataloged under National Stock Number 3020-00-822-6172, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Geartronics Corp. Government technical data includes 21 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-822-6172 |
| Primary Part Number | 31561 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Geartronics Corp |
| Status | ACTIVE |
| Body Style | PLAIN, SOLID |
| Hub Style Designator | PLAIN FIRST END |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Hub Nominal Diameter | 0.500 INCHES FIRST END IN |
| Mounting Hole Type and Quantity | 2 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Style Designator | PROTRUDING HUB |
| Mounting Hole Nominal Thread Size | 0.138 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Material | STEEL COMP 303 OVERALL |
| Material Document and Classification | MIL-S-7720,COMP 303S MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter | 1.292 INCHES IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.251 INCHES FIRST END IN |
| Surface Treatment | PASSIVATE OVERALL |
| Bore Nominal Diameter | 0.157 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Tooth Form | STANDARD |
| Bore Style | PLAIN BOTH ENDS |
| Face Nominal Width | 0.188 INCHES IN |
| Hardness Rating | 76.0 ROCKWELL C NOMINAL OVERALL |
| Pitch Diameter | 1.2500 INCHES NOMINAL IN |
| Teeth Quantity | 60 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-822-6172 is a Gear,spur, manufactured by Geartronics Corp, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-822-6172 has 2 cross-referenced part numbers: 31561 (Geartronics Corp), 5431101 (Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co).
There are 8 known substitutes for 3020-00-822-6172: 1680-00-347-0633, 5330-00-807-0481, 5340-00-937-8318 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 31561: Body Style: PLAIN, SOLID; Hub Style Designator: PLAIN FIRST END; Mounting Hole Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END; Hub Nominal Diameter: 0.500 INCHES FIRST END IN. 21 total characteristics are documented in the Federal Logistics Information System.