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National Stock Number:
3040-01-429-9912
Federal Supply Class:
3040
National Item Identification Number:
014299912
Description:
SHAFT,SHOULDERED
Detail:
A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (AA), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see AXLE(1), SHOULDERED. For items not having any of the above conditions see PIN, SHOULDER, HEADLESS. Excludes SHAFT(1), STRAIGHT; and AXLE(1), STRAIGHT.
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Manufacturer Information:
| 6894423 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6894423 ITEM 4 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6894456 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| END SIMILARITY | NOT IDENTICAL | | FIRST END DIAMETER | 3.8715 INCHES MINIMUM AND 3.8720 INCHES MAXIMUM | | FIRST END INTERNAL THREAD LENGTH | 0.500 INCHES NOMINAL | | FIRST END STYLE | INTERNAL THREADED | | LARGEST STEP DIAMETER | 6.500 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-16974,4140 MIL SPEC SINGLE MATERIAL RESPONSE OR AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A304,GR 4140H ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 4140 | | PROPRIETARY CHARACTERISTICS | NPAC | | OVERALL LENGTH | 6.000 INCHES NOMINAL | | SECOND END DIAMETER | 2.6239 INCHES MINIMUM AND 2.6247 INCHES MAXIMUM | | SECOND END DISTANCE FROM END TO GROOVE | 0.394 INCHES NOMINAL | | SECOND END GROOVE DIAMETER | 2.2481 INCHES NOMINAL | | SECOND END GROOVE WIDTH | 0.0860 INCHES MINIMUM AND 0.0910 INCHES MAXIMUM | | SECOND END INTERNAL THREAD LENGTH | 1.000 INCHES NOMINAL | | SECOND END STYLE | CIRCULAR GROOVED AND INTERNALLY THREADED | | SPECIAL FEATURES | FOUR 3/4-10 UNC-2B HOLES ON 5.250 IN.DBC; SECOND END CBORE 0.750 IN.DIA 0.500 IN.DEEP; 7/32 IN. THRU HOLE IN RELIEF PASSAGE; 3/8-16 UNC-3B FIRST END,1/8-27 NPT SECOND END | | STEP QUANTITY | 5 | | SURFACE FINISH | 32.0 MICROINCHES |
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