The Gear,spur, cataloged under National Stock Number 3020-00-499-4242, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Marine Engine Specialties Div of Mesco Tectonics Inc. Government technical data includes 27 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-499-4242 |
| Primary Part Number | 2723 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Marine Engine Specialties Div of Mesco Tectonics Inc |
| Status | ACTIVE |
| Body Style | PLAIN, SOLID |
| Mounting Hole Thread Quantity Per Inch | 18 AXIALLY THROUGH HUB FIRST END |
| Mounting Hole Type and Quantity | 2 THREADED AXIALLY THROUGH HUB FIRST END |
| Nominal Distance From Bore Center to Keyway Bottom | 0.5295 INCHES BOTH ENDS IN |
| Hardness Rating | 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL |
| Mounting Hole Nominal Diameter | 0.125 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.2500 INCHES SECOND END IN |
| Bore Nominal Diameter | 0.8755 INCHES BOTH ENDS IN |
| Face Nominal Width | 0.750 INCHES IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH HUB FIRST END |
| Style Designator | PROTRUDING HUBS |
| Nominal Outside Diameter | 3.000 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Nominal Distance Between Body Face and Protruding Hub End | 0.3750 INCHES FIRST END IN |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Nominal Thread Size | 0.312 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Mounting Hole Type and Quantity | 1 PLAIN TRANSVERSELY THROUGH HUB FIRST END |
| Material | STEEL OVERALL |
| Tooth Form | STANDARD |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Hub Nominal Diameter | 1.2500 INCHES SECOND END IN |
| Hub Nominal Diameter | 1.6625 INCHES FIRST END IN |
| Keyway Nominal Width | 0.1870 INCHES BOTH ENDS IN |
| Teeth Quantity | 22 |
| Attachment Method | MOUNTING HOLE |
| Pitch Diameter | 0.7500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-499-4242 is a Gear,spur, manufactured by Marine Engine Specialties Div of Mesco Tectonics Inc, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-499-4242 has 2 cross-referenced part numbers: 2723 (Marine Engine Specialties Div of Mesco Tectonics Inc), 2723 (Lear Siegler Inc Sherwood Div).
There are 12 known substitutes for 3020-00-499-4242: 6685-00-239-4937, 5905-00-715-6363, 5935-00-776-2689 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2723: Body Style: PLAIN, SOLID; Mounting Hole Thread Quantity Per Inch: 18 AXIALLY THROUGH HUB FIRST END; Mounting Hole Type and Quantity: 2 THREADED AXIALLY THROUGH HUB FIRST END; Nominal Distance From Bore Center to Keyway Bottom: 0.5295 INCHES BOTH ENDS IN. 28 total characteristics are documented in the Federal Logistics Information System.