2540-20-005-5511 STIFFENER 5310-20-005-5513 WASHER,FLAT

National Stock Number:
5305-20-005-5512

Federal Supply Class:
5305

National Item Identification Number:
200055512

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:
10716-042020Y3H3FASTENAL COMPANY
10716-04202L4186FASTENAL COMPANY
AC2319L0782ARMATEC SURVIVABILITY CORP


Techincal Specification:
COLORYELLOW OVERALL
FASTENER LENGTH35.0 MILLIMETERS NOMINAL
HEAD DIAMETER16.0 MILLIMETERS NOMINAL
HEAD STYLEFLAT TOP ELEVATOR
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYFHCS
NOMINAL THREAD DIAMETER8.0 MILLIMETERS
WIDTH ACROSS FLATS5.0 MILLIMETERS NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONZINC ASTM B-633, TYPE II ASSN STD ALL TREATMENT RESPONSES OVERALL
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS1.25


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