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National Stock Number:
5305-01-330-6348
Federal Supply Class:
5305
National Item Identification Number:
013306348
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:
| LS35353-1 | 27624 | SPS TECHNOLOGIES LLC | | LS35353-1 | 56878 | SPS TECHNOLOGIES, LLC | | LS35353-1 | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| FASTENER LENGTH | 4.673 INCHES MINIMUM AND 4.703 INCHES MAXIMUM | | GRIP DIAMETER | 0.9935 INCHES MINIMUM AND 0.9945 INCHES MAXIMUM | | GRIP LENGTH | 3.365 INCHES MINIMUM AND 3.385 INCHES MAXIMUM | | HEAD DIAMETER | 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM | | HEAD HEIGHT | 1.000 INCHES NOMINAL | | HEAD STYLE | BEVEL-CONICAL | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-5000 MIL SPEC 3RD MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 8740 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.073 INCHES | | SPECIAL FEATURES | OPTIONAL 0.60 DEGREE NO. 3 MACHINE CENTER DRILL THROUGH SHANK,DIA.,0.250 MAX.,COUNTERSUNK | | WIDTH ACROSS FLATS | 0.750 INCHES MINIMUM AND 0.754 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.287 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 14 | | THREAD SERIES DESIGNATOR | UNS |
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