7490-00-972-5813 LINK Index 5305-00-972-5820 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-972-5818

Federal Supply Class:
5305

National Item Identification Number:
009725818

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:
12Z1043-6394135NAVAL ORDNANCE STANDARDS
FFS8681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
DEPARTURE FROM CITED DESIGNATORAS MOD BY MATL
FASTENER LENGTH1.234 INCHES MINIMUM AND 1.281 INCHES MAXIMUM
HEAD DIAMETER0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
HEAD HEIGHT0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY K-500 OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES
NONDEFINITIVE SPEC/STD DATA6 TYPE
WIDTH ACROSS FLATS0.312 INCHES NOMINAL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.250 INCHES MINIMUM
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNC


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