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National Stock Number:
5305-01-193-7613
Federal Supply Class:
5305
National Item Identification Number:
011937613
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:
| AS292-6-11 | 84256 | AVIBANK MFG., INC. | | GB510CG611 | 06725 | SPS TECHNOLOGIES, LLC | | GB510CG611 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | GB510CG611 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | GB510CG611 | 27614 | JENKINS METAL CORP | | GB510CG611 | 50539 | VARIAN DATA MACHINES CUSTOMER SERVICE | | GB510CG611 | 58845 | ABOUNDING SECURITY INC DIV OF MAA CORP | | GB510CG611 | 73197 | HI-SHEAR CORPORATION | | GB510CG611 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | GB510CG611 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.352 INCHES MINIMUM AND | | 0.403 INCHES MAXIMUM | | FASTENER LENGTH | 1.227 INCHES MINIMUM AND | | 1.247 INCHES MAXIMUM | | MATERIAL | STEEL COMP XM-13 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 43.0 ROCKWELL C MINIMUM AND | | 47.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 63000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.704 INCHES MINIMUM AND | | 0.762 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | LOCKING FEATURE | DETENT BALL GRIP | | GRIP LENGTH | 0.688 INCHES MINIMUM AND | | 0.704 INCHES MAXIMUM | | GRIP DIAMETER | 0.3737 INCHES MINIMUM AND | | 0.3742 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.099 INCHES MINIMUM AND | | 1.119 INCHES MAXIMUM FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND | | 0.116 INCHES MAXIMUM FIRST HOLE | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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