7643-01-447-8080 TOPOGRAPHIC GEOSPATIAL PRODUCTS Index 5306-01-447-8082 BOLT,INTERNAL WRENCHING

National Stock Number:
5305-01-447-8081

Federal Supply Class:
5305

National Item Identification Number:
014478081

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:
NAS590-1780205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.625 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.953 INCHES MAXIMUM
FASTENER LENGTH2.000 INCHES MINIMUM AND
2.030 INCHES MAXIMUM
MATERIALSTEEL COMP 4340 OR
STEEL COMP 4140 OR
STEEL COMP 8740 OR
STEEL COMP 8735 OR
STEEL COMP 6150 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR
MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR
MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR
MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR
MIL-S-8503 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE 2, CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER1.201 INCHES MINIMUM AND
1.272 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND
101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLEHIGH-TORQUE
GRIP LENGTH1.052 INCHES MINIMUM AND
1.072 INCHES MAXIMUM
GRIP DIAMETER0.6230 INCHES MINIMUM AND
0.6240 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
32.0 MICROINCHES GRIP
32.0 MICROINCHES THREADS
SPECIFICATION/STANDARD DATA80205-NAS590 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD


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