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National Stock Number:
5305-01-626-8200
Federal Supply Class:
5305
National Item Identification Number:
016268200
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:
| 121672-5-10 | 80539 | SPS TECHNOLOGIES, LLC | | ST3M736-5-10 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE II, CLASS 2 FED STD SINGLE TREATMENT RESPONSE OVERALL | | QQ-P-35 FED STD SINGLE TREATMENT RESPONSE RING | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND | | 41.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 7510 POUNDS PER SQUARE INCH | | HEAD STYLE | OVAL COUNTERSUNK | | HEAD DIAMETER | 0.577 INCHES NOMINAL | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | LOCKING FEATURE | RETAINER RING | | GRIP LENGTH | 0.625 INCHES NOMINAL | | GRIP DIAMETER | 0.3108 INCHES MINIMUM AND | | 0.3117 INCHES MAXIMUM | | SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD | | 63.0 MICROINCHES GRIP | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.008 INCHES NOMINAL OVERALL | | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND | | 0.086 INCHES MAXIMUM OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, SELF-RETAINING, IMPEDENCE TYPE, FLUSH HEAD, 450 DEG F, 95 KSI FSU | | THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.3125 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.337 INCHES MINIMUM AND | | 0.368 INCHES MAXIMUM | | FASTENER LENGTH | 1.113 INCHES NOMINAL | | MATERIAL | STEEL COMP 4140 OVERALL | | STEEL COMP 630 RING | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5643 FED SPEC SINGLE MATERIAL RESPONSE RING | | SURFACE TREATMENT | CADMIUM OVERALL | | PASSIVATE RING |
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