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National Stock Number:
5305-00-916-9488
Federal Supply Class:
5305
National Item Identification Number:
009169488
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:
| NAS1125-29H | 04348 | LAWRENCE ENGINEERING AND SUPPLY INC | | NAS1125-29H | 07851 | NOR-CAL SUPPLY CO | | NAS1125-29H | 08938 | AIR INDUSTRIES CO INC | | NAS1125-29H | 17446 | HUCK INTERNATIONAL, INC | | NAS1125-29H | 30485 | QUALIFIED AIR COMPONENTS INC. | | NAS1125-29H | 30902 | F AND C SALES INC | | NAS1125-29H | 50568 | APCOM INC | | NAS1125-29H | 53606 | PLASTIC AND METAL PRODUCTS CORPORATION | | NAS1125-29H | 56878 | SPS TECHNOLOGIES, LLC | | NAS1125-29H | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | NAS1125-29H | 73197 | HI-SHEAR CORPORATION | | NAS1125-29H | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | NAS1125-29H | 80539 | SPS TECHNOLOGIES, LLC | | NAS1125-29H | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | NAS1125-29H | 97928 | HUCK INTL INC | | NAS1125-29H | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.375 INCHES MINIMUM | | FASTENER LENGTH | 2.172 INCHES MINIMUM AND | | 2.202 INCHES MAXIMUM | | MATERIAL | STEEL COMP E4340 OR | | STEEL COMP 4140 OR | | STEEL COMP 8740 OR | | STEEL COMP 8735 OR | | STEEL COMP 6150 OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND | | 40.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.413 INCHES MINIMUM AND | | 0.438 INCHES MAXIMUM | | HEAD HEIGHT | 0.162 INCHES MINIMUM AND | | 0.183 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | HOLE CONFIGURATION STYLE | ROUND | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 2 | | HOLE DIAMETER | 0.064 INCHES NOMINAL | | GRIP LENGTH | 1.812 INCHES NOMINAL | | GRIP DIAMETER | 0.3110 INCHES MINIMUM AND | | 0.3120 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | 32.0 MICROINCHES THREADS | | SPECIFICATION/STANDARD DATA | 80205-NAS1125 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
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