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National Stock Number:
3040-00-876-9040
Federal Supply Class:
3040
National Item Identification Number:
008769040
Description:
SHAFT,STRAIGHT
Detail:
A straight shaft having two or more of the following conditions: a specified surface finish designation in the range of 1 to 125 microinches (o.o25 to 3.2 micrometers), arithmetical average (aa), machined peripheral flat(s), circular groove (s), keyway(s), splines, threads, or holes. It is not designed for use in aligning by fitting into corresponding holes of another item. It may be drilled for jubricating holes. For items having an integral gear(s) or worm(s), see GEARSHAFT (as modified). For items designed to support rotating members see AXLE(1), STRAIGHT. For items not having the above conditions see PIN, STRAIGHT, HEADLESS. For items having machined ends which constitute steps see SHAFT(1), SHOULDERED; AXLE(1), SHOULDERED; and BOLT, FLUID PASSAGE.
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Manufacturer Information:
| 4918-1 | 03538 | LOCKHEED MARTIN CORPORATION | | 4918-1 | 54497 | MARTIN MARIETTA TECHNOLOGIES INC SUB OF MARTIN MARIETTA CORP AERO AND NAVAL SYSTEMS | | B4918 | 54497 | MARTIN MARIETTA TECHNOLOGIES INC SUB OF MARTIN MARIETTA CORP AERO AND NAVAL SYSTEMS |
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Techincal Specification:
| END SIMILARITY | NOT IDENTICAL | | FIRST END DISTANCE FROM END TO GROOVE | 0.087 INCHES NOMINAL | | FIRST END GROOVE DIAMETER | 0.3430 INCHES MINIMUM AND 0.3460 INCHES MAXIMUM | | FIRST END DIAMETER | 0.4370 INCHES NOMINAL | | FIRST END STYLE | CIRCULAR GROOVED | | FIRST END GROOVE WIDTH | 0.0390 INCHES MINIMUM AND 0.0420 INCHES MAXIMUM | | OVERALL LENGTH | 7.200 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 303 | | SECOND END DISTANCE FROM END TO GROOVE | 3.272 INCHES NOMINAL | | SECOND END GROOVE DIAMETER | 0.3430 INCHES MINIMUM AND 0.3460 INCHES MAXIMUM | | SECOND END GROOVE WIDTH | 0.0390 INCHES MINIMUM AND 0.0420 INCHES MAXIMUM | | SECOND END DIAMETER | 0.4370 INCHES NOMINAL | | SECOND END STYLE | CIRCULAR GROOVED | | SURFACE FINISH | 29.0 MICROINCHES |
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