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National Stock Number:
3020-00-251-0879
Federal Supply Class:
3020
National Item Identification Number:
002510879
Description:
GEAR,HELICAL
Detail:
A GEAR, CYLINDRICAL IN FORM, WITH TEETH ON THE OUTER SURFACE AT AN ANGLE TO THE AXIS OF THE GEAR. SEE ALSO GEAR, ANTIBACKLASH, HELICAL:
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Manufacturer Information:
| DA6157 | 81601 | NORFOLK NAVAL SHIPYARD |
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Techincal Specification:
| MATERIAL | STEEL COMP 1137 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE AND | | AISI/SAE 1137 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 21.0 ROCKWELL C MINIMUM AND | | 25.0 ROCKWELL C MAXIMUM OVERALL | | TEETH QUANTITY | 30 | | TEETH TYPE | SINGLE HELIX | | TOOTH FORM | STANDARD | | TOOTH DIRECTION | RIGHT | | PRESSURE ANGLE | 14.5000 DEGREES | | HELIX ANGLE | 26.8333 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 3.3622 INCHES NOMINAL | | NOMINAL OVERALL LENGTH | 1.359 INCHES | | NOMINAL OUTSIDE DIAMETER | 3.5622 INCHES | | FACE NOMINAL WIDTH | 1.219 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.140 INCHES FIRST END | | BORE STYLE | W/ KEYWAY BOTH ENDS | | BORE NOMINAL DIAMETER | 1.999 INCHES BOTH ENDS | | KEYWAY NOMINAL WIDTH | 0.312 INCHES BOTH ENDS | | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 1.166 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PLAIN FIRST END | | HUB NOMINAL DIAMETER | 2.875 INCHES FIRST END | | BODY STYLE | PLAIN, SOLID | | SPECIAL FEATURES | TIMING MARK AT CENTER LINE OF TOOTH SPACED 42 DEG 14 MIN FROM CENTER LINE OF KEYWAY,2 PULLER HOLES 3/8-16 UNC 2B THD,9/16 IN. DEEP ON 2-9/16 IN. DIA BOLT CIRCLE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 81601 | | DESIGN CONTROL REFERENCE | DA6157 |
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