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National Stock Number:
5306-00-028-4207
Federal Supply Class:
5306
National Item Identification Number:
000284207
Description:
BOLT,MACHINE
Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.
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Manufacturer Information:
| LW-25S1.50 | 80254 | TEXTRON LYCOMING INC WILLIAMSPORT PLANT | | LW25S1-50 | 80254 | TEXTRON LYCOMING INC WILLIAMSPORT PLANT | | STD1416 | 80254 | TEXTRON LYCOMING INC WILLIAMSPORT PLANT |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 1.500 INCHES NOMINAL | | MATERIAL | STEEL COMP 8740 OVERALL | | THREAD LENGTH | 0.750 INCHES MINIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 32.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 123000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.200 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.440 INCHES NOMINAL | | GRIP LENGTH | 0.750 INCHES NOMINAL | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.400 INCHES NOMINAL FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES NOMINAL FIRST HOLE | | FEATURES PROVIDED | FINISHED HEAD | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 80254 | | DESIGN CONTROL REFERENCE | LW25S1-50 |
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