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National Stock Number:
5305-01-016-2924
Federal Supply Class:
5305
National Item Identification Number:
010162924
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:
| 160D725151-11 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 160D725151-11 | 52977 | WELDING METALLURGY, INC. | | 160D725151-11 | 57928 | SONIC INDUSTRIES, INC. | | 160D725151-11 | 59563 | REID PRODUCTS INC. | | 160D725151-11 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 162D725151-2001 | 05812 | HORST ENGINEERING & MANUFACTURING CO | | 162D725151-2001 | 52977 | WELDING METALLURGY, INC. | | 162D725151-2001 | 57928 | SONIC INDUSTRIES, INC. | | 162D725151-2001 | 59563 | REID PRODUCTS INC. | | 162D725151-2001 | 76301 | THE BOEING COMPANY | | 162D725151-2001 | 98747 | OGDEN AIR LOGISTICS CENTER |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.124 INCHES NOMINAL FIRST HOLE | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | FASTENER LENGTH | 2.933 INCHES NOMINAL | | GRIP DIAMETER | 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM | | GRIP LENGTH | 2.395 INCHES NOMINAL | | HEAD DIAMETER | 0.933 INCHES NOMINAL | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 COND D MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4340 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | MINIMUM TENSILE STRENGTH | 200000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.143 INCHES NOMINAL FIRST HOLE | | SURFACE FINISH | 63.0 MICROINCHES GRIP | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.538 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNJF |
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