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National Stock Number:
5305-01-600-8783
Federal Supply Class:
5305
National Item Identification Number:
016008783
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:
| TX1026C4-33A | 06725 | SPS TECHNOLOGIES, LLC | | TX1026C4-33A | 80539 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| HEAD DIAMETER | 0.497 INCHES MINIMUM AND 0.506 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | TORX | | MATERIAL DOCUMENT AND CLASSIFICATION | AAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY 718 OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, 100 DEGREE TORX RECESS PH13-8MO (125 KSI SHEAR) INCONEL 718 (125 SHEAR) 6AL-4V TI (160 KSI TENSILE) | | POINT STYLE | FLAT | | POINT DIAMETER | 0.477 INCHES MAXIMUM | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SPECIAL FEATURES | 125 KSI SHEAR STRENGTH - THE INCONEL 718 C SERIES MAY BE USED ONLY IN HIGH STRENGTH, NON-MAGNETIC APPLICATIONS OR IN C/E STRUCTURE WHERE EITHER THE "V" OR "D" SERIES SCREWS WOULDN'T MEET DESIGN REQUIREMENTS | | SPLINE MAJOR DIAMETER | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.470 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNJF | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.487 INCHES NOMINAL | | GRIP DIAMETER | 0.250 INCHES NOMINAL | | GRIP LENGTH | 0.095 INCHES NOMINAL |
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