3110-00-422-1539 PLATE,RETAINING,BEARING Index 5305-00-422-1541 SCREW,CAP,SOCKET HEAD

National Stock Number:
5306-00-422-1540

Federal Supply Class:
5306

National Item Identification Number:
004221540

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.


Manufacturer Information:
32769706725SPS TECHNOLOGIES, LLC
3276970EEG3VALCO CO GOVERNMENT SALES OFFICE
32769756878SPS TECHNOLOGIES, LLC
32769777445RTX CORPORATION
32769793907TEXTRON FASTENING SYSTEMS DBA DECORAH OPERATIONS TFS


Techincal Specification:
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
FASTENER LENGTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON W/HOLE
HOLE CONFIGURATION STYLEDOUBLE HEXAGON FLATS
HOLE DIAMETER0.067 INCHES NOMINAL
HOLE QUANTITY4
HOLE TYPEDRILLED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.410 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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