5305-01-160-2013 SCREW,CLOSE TOLERANCE Index 5305-01-160-2016 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-160-2014

Federal Supply Class:
5305

National Item Identification Number:
011602014

Description:
SCREW,CLOSE TOLERANCE

Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
CA2630-04-2929372HOWMET GLOBAL FASTENING SYSTEMS INC.
CA2630-05-2929372HOWMET GLOBAL FASTENING SYSTEMS INC.
MS3369B42996906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.277 INCHES MINIMUM AND
0.329 INCHES MAXIMUM
FASTENER LENGTH2.231 INCHES MINIMUM AND
2.251 INCHES MAXIMUM
MATERIALSTEEL COMP XM-13 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MINIMUM TENSILE STRENGTH63000 POUNDS PER SQUARE INCH
HEAD STYLECROWNED HEXAGON
HEAD HEIGHT0.126 INCHES MINIMUM AND
0.141 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND
0.439 INCHES MAXIMUM
INTERNAL DRIVE STYLESLOT
GRIP LENGTH1.812 INCHES MINIMUM AND
1.829 INCHES MAXIMUM
GRIP DIAMETER0.2487 INCHES MINIMUM AND
0.2492 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
32.0 MICROINCHES GRIP
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.135 INCHES MINIMUM AND
2.155 INCHES MAXIMUM FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MINIMUM AND
0.086 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURESRETAINING ELEMENT IN SHANK
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS3369B429
THREAD SERIES DESIGNATORUNJF


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