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National Stock Number: 3020-00-434-8300
Federal Supply Class: 3020
National Item Identification Number: 004348300
Description: GEAR,SPUR
Detail: 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.
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Manufacturer Information:
| 47-620-221-1 | 80070 | LOCKHEED MARTIN CORPORATION | | 47-620-221-1 | 97499 | BELL TEXTRON INC |
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Techincal Specification:
| BODY STYLE | PLAIN, SOLID | | BORE NOMINAL DIAMETER | 3.920 INCHES BOTH ENDS | | BORE STYLE | W/COUNTERBORE BOTH ENDS | | COUNTERBORE NOMINAL DIAMETER | 3.940 INCHES SECOND END | | COUNTERBORE NOMINAL DEPTH | 0.400 INCHES SECOND END | | FACE NOMINAL WIDTH | 1.773 INCHES | | HARDNESS RATING | 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 91.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL | | PITCH DIAMETER | 4.6000 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | NOMINAL OUTSIDE DIAMETER | 4.799 INCHES | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | HUBLESS | | SURFACE TREATMENT | COPPER ALLOY OVERALL | | TEETH QUANTITY | 46 | | SPECIAL FEATURES | TEETH SHAVED TO 4.598 IN. MIN,4.602 IN. MAX OD,0.634 IN. MIN,0.635 IN. MAX W FROM 2ND END,TEETH UNDERCUT ON 45 DEG ANGLE,0.030 IN. W TO 4.560 IN. OD LOCATED 1.136 IN. MIN,1.140 IN. MAX DISTANCE FROM 1ST END | | TOOTH FORM | STANDARD |
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