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National Stock Number:
5305-00-917-6324
Federal Supply Class:
5305
National Item Identification Number:
009176324
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:
| NAS1134-13 | 04348 | LAWRENCE ENGINEERING AND SUPPLY INC | | NAS1134-13 | 07851 | NOR-CAL SUPPLY CO | | NAS1134-13 | 08938 | AIR INDUSTRIES CO INC | | NAS1134-13 | 17446 | HUCK INTERNATIONAL, INC | | NAS1134-13 | 30902 | F AND C SALES INC | | NAS1134-13 | 50568 | APCOM INC | | NAS1134-13 | 53606 | PLASTIC AND METAL PRODUCTS CORPORATION | | NAS1134-13 | 56878 | SPS TECHNOLOGIES, LLC | | NAS1134-13 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | NAS1134-13 | 73197 | HI-SHEAR CORPORATION | | NAS1134-13 | 80539 | SPS TECHNOLOGIES, LLC | | NAS1134-13 | 90205 | DEARBORN CO | | NAS1134-13 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | NAS1134-13 | 97928 | HUCK INTL INC | | NAS1134-13 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.316 INCHES MINIMUM | | FASTENER LENGTH | 1.113 INCHES MINIMUM AND | | 1.143 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4140 OR | | STEEL COMP E4340 OR | | STEEL COMP 6150 OR | | STEEL COMP 8735 OR | | STEEL COMP 8740 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR | | MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR | | MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR | | MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR | | MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM 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 | PAN | | HEAD DIAMETER | 0.424 INCHES MINIMUM AND | | 0.492 INCHES MAXIMUM | | HEAD HEIGHT | 0.162 INCHES MINIMUM AND | | 0.175 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | GRIP LENGTH | 0.812 INCHES NOMINAL | | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND | | 0.2495 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | 32.0 MICROINCHES GRIP | | 32.0 MICROINCHES THREADS | | SPECIFICATION/STANDARD DATA | 80205-NAS1134 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
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