5310-00-660-1917 WASHER,FLAT Index 5306-00-660-1933 BOLT,MACHINE

National Stock Number:
5305-00-660-1930

Federal Supply Class:
5305

National Item Identification Number:
006601930

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:
43-36956232LOCKHEED MARTIN CORPORATION


Techincal Specification:
FASTENER LENGTH0.156 INCHES NOMINAL
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.092 INCHES MINIMUM AND 0.096 INCHES MAXIMUM
HEAD HEIGHT0.057 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALCOPPER ALLOY 170 OR COPPER ALLOY 172 OVERALL
NOMINAL THREAD DIAMETER0.060 INCHES
WIDTH ACROSS FLATS0.050 INCHES MINIMUM AND 0.051 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.156 INCHES MAXIMUM
THREAD QUANTITY PER INCH80
THREAD SERIES DESIGNATORUNF


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