5305-01-317-0079 SCREW,CAP,SOCKET HEAD Index 5305-01-317-0081 SCREW,SHOULDER

National Stock Number:
5305-01-317-0080

Federal Supply Class:
5305

National Item Identification Number:
013170080

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:
3176213-B-01110001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
FASTENER LENGTH2.250 INCHES NOMINAL
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.419 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
HEAD HEIGHT0.209 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
HOLE CONFIGURATION STYLEHEXAGON FLATS
HOLE DIAMETER0.044 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
HOLE TYPEDRILLED
HOLE QUANTITY6
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TY 2,CL FE/ZM 5 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.139 INCHES NOMINAL
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.156 INCHES NOMINAL


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