1660-00-007-2813 RETAINER,GUIDE,HEAT Index 3120-00-007-2817 BUSHING,SLEEVE

National Stock Number:
5305-00-007-2816

Federal Supply Class:
5305

National Item Identification Number:
000072816

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:
509440-62680020NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2


Techincal Specification:
TEST DATA DOCUMENT81349-MILI6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.625 INCHES MINIMUM
FASTENER LENGTH3.250 INCHES NOMINAL
MATERIALSTEEL COMP 4140 OR
STEEL COMP E4340 OR
STEEL COMP 6150 OR
STEEL COMP 8735 OR
STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR
MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR
MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR
MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR
MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM YIELD STRENGTH130000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.563 INCHES MAXIMUM
HEAD HEIGHT0.375 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.312 INCHES NOMINAL
SURFACE FINISH125.0 MICROINCHES OVERALL


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