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National Stock Number:
5305-00-921-0006
Federal Supply Class:
5305
National Item Identification Number:
009210006
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:
| NAS1164-32L | 07851 | NOR-CAL SUPPLY CO | | NAS1164-32L | 08938 | AIR INDUSTRIES CO INC | | NAS1164-32L | 16941 | LONG-LOK LLC | | NAS1164-32L | 17446 | HUCK INTERNATIONAL, INC | | NAS1164-32L | 30485 | QUALIFIED AIR COMPONENTS INC. | | NAS1164-32L | 30889 | ERIKS SOUTHWEST INC DBA MONTCLAIR ENTERPRISES | | NAS1164-32L | 30902 | F AND C SALES INC | | NAS1164-32L | 50568 | APCOM INC | | NAS1164-32L | 53606 | PLASTIC AND METAL PRODUCTS CORPORATION | | NAS1164-32L | 56878 | SPS TECHNOLOGIES, LLC | | NAS1164-32L | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | NAS1164-32L | 73197 | HI-SHEAR CORPORATION | | NAS1164-32L | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | NAS1164-32L | 80539 | SPS TECHNOLOGIES, LLC | | NAS1164-32L | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | NAS1164-32L | 94348 | BIRMINGHAM MFG CO | | NAS1164-32L | 97928 | HUCK INTL INC | | NAS1164-32L | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | NAS1164-32L | 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 | 0.400 INCHES MINIMUM AND | | 0.450 INCHES MAXIMUM | | FASTENER LENGTH | 2.410 INCHES MINIMUM AND | | 2.440 INCHES MAXIMUM | | MATERIAL | PLASTIC LOCKING FEATURE | | STEEL COMP 4140 OR | | STEEL COMP E4340 OR | | STEEL COMP 8740 FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR | | MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR | | MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE FASTENER | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER | | 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 COUNTERSUNK | | HEAD DIAMETER | 0.449 INCHES MINIMUM AND | | 0.507 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | LOCKING FEATURE | STRIP THREADS | | GRIP LENGTH | 1.990 INCHES MINIMUM AND | | 2.010 INCHES MAXIMUM | | 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-NAS1164 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
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