5310-01-445-6877 WASHER,CONCAVE Index 5305-01-445-6879 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-445-6878

Federal Supply Class:
5305

National Item Identification Number:
014456878

Description:
SCREW,DRIVE

Detail:
A HARDENED CYLINDRICAL FASTENER WITH MULTIPLE SPIRAL FLUTES ON ITS SHANK. IT ALSO HAS AN END SMALLER IN DIAMETER THAN THE OUTSIDE DIAMETER OF THE SPIRAL FLUTES, WHICH ACTS AS A PILOT WHEN DRIVEN INTO A DRILLED HOLE.


Manufacturer Information:
4847455 PART 1480064NAVAL SHIP SYSTEMS COMMAND
5210115 PART 2253711NAVAL SEA SYSTEMS COMMAND
6352216 PART 253711NAVAL SEA SYSTEMS COMMAND
6918876 PART 253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
NONMACHINE THREAD STYLEDRIVE SCREW (TYPE U)
NONMACHINE NOMINAL THREAD DIAMETER0.242 INCHES
FASTENER LENGTH0.750 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
HEAD STYLEBUTTON
HEAD DIAMETER0.429 INCHES MINIMUM AND
0.457 INCHES MAXIMUM
HEAD HEIGHT0.155 INCHES MINIMUM AND
0.170 INCHES MAXIMUM
PILOT DIAMETER0.198 INCHES MINIMUM AND
0.202 INCHES MAXIMUM
PILOT LENGTH0.078 INCHES NOMINAL


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