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National Stock Number:
5305-01-525-3775
Federal Supply Class:
5305
National Item Identification Number:
015253775
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:
| AIC9535-7-10 | 06725 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| FASTENER LENGTH | 1.527 INCHES NOMINAL | | GRIP DIAMETER | 0.437 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | GRIP LENGTH | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | HEAD DIAMETER | 0.805 INCHES MINIMUM AND 0.825 INCHES MAXIMUM | | HEAD HEIGHT | 0.195 INCHES NOMINAL | | HEAD STYLE | FLUSH | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP H11 OVERALL | | MINIMUM TENSILE STRENGTH | 18800 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.438 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SPECIAL 100 DEG. FLUSH HEAD MS33781 RECESS,132 KSI SHEAR | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.889 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 20 |
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