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National Stock Number:
5305-00-068-5371
Federal Supply Class:
5305
National Item Identification Number:
000685371
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:
| 5305PL0144386 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | AIC82-5-18 | 06725 | SPS TECHNOLOGIES, LLC | | C082-5-18 | 06725 | SPS TECHNOLOGIES, LLC | | C082-5-18 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | C082-5-18 | 56878 | SPS TECHNOLOGIES, LLC | | C082-5-18 | 80539 | SPS TECHNOLOGIES, LLC | | C082-5-18 | 81755 | LOCKHEED MARTIN CORPORATION | | C082-5-18 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | K611641-11 | 84955 | KAMAN AEROSPACE CORPORATION | | SFT22-5-18 | 56878 | SPS TECHNOLOGIES, LLC | | SFT22-5A18 | 80539 | SPS TECHNOLOGIES, LLC | | VS2545T5F18 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VS254T5F18 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.460 INCHES MINIMUM AND 1.507 INCHES MAXIMUM | | GRIP DIAMETER | 0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM | | GRIP LENGTH | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM | | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6485 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP H11 OVERALL | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | TEST DATA DOCUMENT | 84955-K611641 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.341 INCHES MINIMUM AND 0.361 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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