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National Stock Number:
5305-01-518-9906
Federal Supply Class:
5305
National Item Identification Number:
015189906
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:
| BACB30VF3K8 | 06725 | SPS TECHNOLOGIES, LLC | | BACB30VF3K8 | 17446 | HUCK INTERNATIONAL, INC | | BACB30VF3K8 | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30VF3K8 | 27624 | SPS TECHNOLOGIES LLC | | BACB30VF3K8 | 73197 | HI-SHEAR CORPORATION | | BACB30VF3K8 | 81205 | THE BOEING COMPANY | | BACB30VF3K8 | Z03F0 | BOEING DEFENCE AUSTRALIA LTD | | BACB30VF3K8 | Z8T75 | BOEING DEFENCE AUSTRALIA LTD |
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Techincal Specification:
| FASTENER LENGTH | 0.813 INCHES MINIMUM AND 0.833 INCHES MAXIMUM | | GRIP LENGTH | 0.813 INCHES MINIMUM AND 0.833 INCHES MAXIMUM | | HEAD HEIGHT | 0.015 INCHES MINIMUM AND 0.023 INCHES MAXIMUM | | HEAD STYLE | PALM GRIP | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE III | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT | | MATERIAL | TITANIUM ALLOY OVERALL | | MINIMUM TENSILE STRENGTH | 1800 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | NONSTANDARD THREAD PITCH DIAMETER | +0.1881 TO 0.1895 INCHES | | WIDTH BETWEEN FLATS | 0.169 INCHES NOMINAL | | SURFACE TREATMENT | ALUMINUM OVERALL | | THREAD LENGTH | 0.190 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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