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National Stock Number:
5305-01-477-5986
Federal Supply Class:
5305
National Item Identification Number:
014775986
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:
| 11827D3D8A | 59563 | REID PRODUCTS INC. | | 3M1169D3D8A | 76301 | THE BOEING COMPANY | | TX1026D3D8A | 06725 | SPS TECHNOLOGIES, LLC | | TX1026D3D8A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.340 INCHES MINIMUM AND | | 0.350 INCHES MAXIMUM | | FASTENER LENGTH | 0.830 INCHES MINIMUM AND | | 0.860 INCHES MAXIMUM | | MATERIAL | NICKEL ALLOY 718 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.372 INCHES MINIMUM AND | | 0.381 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | TORX | | SPLINE MAJOR DIAMETER | 0.154 INCHES MINIMUM AND | | 0.156 INCHES MAXIMUM | | GRIP LENGTH | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | GRIP DIAMETER | 0.189 INCHES NOMINAL | | POINT STYLE | FLAT | | POINT DIAMETER | 0.345 INCHES NOMINAL | | SPECIAL FEATURES | 125 KSI SHEAR STRENGTH | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, 100 DEGREE TENSION HEAD, GEAR DRIVE RECESS |
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