5305-01-567-3816 SCREW,MACHINE. Index 5305-01-567-3833 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-567-3823

Federal Supply Class:
5305

National Item Identification Number:
015673823

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
NAS1352-5H20P80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1352-5H20P96906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH1.250 INCHES NOMINAL
HEAD DIAMETER0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
HOLE CONFIGURATION STYLEROUND INTERNAL HEXAGON
HOLE DIAMETER0.044 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
HOLE QUANTITY6
HOLE TYPEDRILLED
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
WIDTH ACROSS FLATS0.250 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.125 INCHES MINIMUM
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNRC


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