5305-01-458-1680 SCREW,CLOSE TOLERANCE Index 5962-01-458-1682 MICROCIRCUIT,MEMORY

National Stock Number:
5305-01-458-1681

Federal Supply Class:
5305

National Item Identification Number:
014581681

Description:
SETSCREW

Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
AN565EC428H1088044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
FF-S-20081348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.562 INCHES NOMINAL
FASTENER LENGTH0.615 INCHES MINIMUM AND
0.635 INCHES MAXIMUM
MATERIALSTEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD66 300 SERIES FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.125 INCHES MINIMUM AND
0.127 INCHES MAXIMUM
POINT STYLEHALF DOG
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEAN565EC428H10
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFF-S-200


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