5305-00-273-5257 SCREW,CAP,SOCKET HEAD Index 5305-00-273-5272 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-273-5265

Federal Supply Class:
5305

National Item Identification Number:
002735265

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:
12Z51PC34110001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
166254PC410001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
206446PC210001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
297353PC710001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
43-S-4367-1010001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
FFS86TYPE1STYLE1181348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.500 INCHES MAXIMUM
FASTENER LENGTH0.500 INCHES NOMINAL
MATERIALSTEEL COMP 4135 OR
STEEL COMP 4137 OR
STEEL COMP 8635 OR
STEEL COMP 8640 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTZINC OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM YIELD STRENGTH140000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.429 INCHES MINIMUM AND
0.437 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND
0.312 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.218 INCHES MINIMUM AND
0.220 INCHES MAXIMUM
NONDEFINITIVE SPEC/STD DATA1 TYPE AND
11 STYLE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFFS86TYPE1STYLE11


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