NSN 3020-00-831-0251 7748527, 00-831-0251, 008310251
Product Details | SPUR GEAR
3020-00-831-0251 A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also GEAR, ANTIBACKLASH, SPUR. For bulk material, see ROD, PINION.
Part Alternates: 7748527, 3020-00-831-0251, 00-831-0251, 3020008310251, 008310251
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 00-831-0251 | 05466 ( GEAR, SPUR ) |
Drawings & Photos | NSN 3020-00-831-0251
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Related Products | NSN 3020-00-831-0251
Technical Data | NSN 3020-00-831-0251
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP 5120 OR STEEL COMP 8620 OR STEEL COMP 8720 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| HARDNESS RATING | 80.0 ROCKWELL C MINIMUM AND 82.5 ROCKWELL C MAXIMUM OVERALL |
| TEETH QUANTITY | 36 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| BACKLASH DESIGNATION | GRADE A |
| STYLE DESIGNATOR | 4 PROTRUDING HUBS |
| PITCH DIAMETER | 4.5000 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 4.748 INCHES |
| FACE NOMINAL WIDTH | 1.250 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.375 INCHES FIRST END 0.188 INCHES SECOND END |
| BORE STYLE | 6 INVOLUTE SPLINE BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.789 INCHES BOTH ENDS |
| SPLINE QUANTITY | 27 BOTH ENDS |
| SPLINE PITCH DIAMETER | 1.1250 INCHES NOMINAL BOTH ENDS |
| HUB STYLE DESIGNATOR | 1 PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 1.750 INCHES BOTH ENDS |
| BODY STYLE | 1 PLAIN, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 2 THREADED AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.375 INCHES AXIALLY THROUGH BODY, FIRST END |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 2.500 INCHES AXIALLY THROUGH BODY, FIRST END |
| SPECIAL FEATURES | 63 MICROINCH AA FINISH ON GEAR TEETH SURFACES,BORE COUNTERBORED WITH INVOLUTE SPLINE 1.530 IN. LG FROM HUB END,FIRST END WITH 1.200 IN. MAJ DIA,1.0833 IN. MIN DIA,1.125 I. PITCH DIA |
| MANUFACTURERS CODE | 19207 |
| DESIGN CONTROL REFERENCE | 7748527 |
Restrictions/Controls & Freight Information | NSN 3020-00-831-0251
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||