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National Stock Number:
5305-01-607-3258
Federal Supply Class:
5305
National Item Identification Number:
016073258
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.
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Manufacturer Information:
| NAS7306A35X | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | NAS7306A35X | 82918 | THE BOEING COMPANY |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.3750 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.578 INCHES NOMINAL | | FASTENER LENGTH | 2.75 INCHES MINIMUM AND | | 2.78 INCHES MAXIMUM | | MATERIAL | TITANIUM ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | TITANIUM ALLOY 6AL-4V PER AMS4928 OR AMS4967 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS4006 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.692 INCHES MINIMUM AND | | 0.783 INCHES MAXIMUM | | HEAD HEIGHT | 0.166 INCHES NOMINAL | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | CRUCIFORM RIBBED | | GRIP LENGTH | 2.1775 INCHES MINIMUM AND | | 2.1975 INCHES MAXIMUM | | GRIP DIAMETER | 0.3896 INCHES MINIMUM AND | | 0.3901 INCHES MAXIMUM | | SPECIFICATION/STANDARD DATA | 80205-NAS7303 THRU 7316 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,100 DEG HEAD,CRUCIFORM RECESS CLOSE TOLERANCE,6AL-4V TITANIUM ALLOY,LONG THREAD,SELF-LOCKING AND NONLOCKING |
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