5305-01-381-9839 SCREW,CAP,HEXAGON HEAD Index 5305-01-381-9841 SCREW,ASSEMBLED WASHER

National Stock Number:
5305-01-381-9840

Federal Supply Class:
5305

National Item Identification Number:
013819840

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:
S1D10025 ITEM 2999517VACCO INDUSTRIES
V2C11116-7NLO99517VACCO INDUSTRIES
Y2C11116-7NLO99517VACCO INDUSTRIES


Techincal Specification:
FASTENER LENGTH0.875 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
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 CLA FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY K-500 OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
WIDTH ACROSS FLATS0.250 INCHES NOMINAL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.764 INCHES MINIMUM AND 0.875 INCHES MAXIMUM
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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