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National Stock Number:
5305-00-106-6272
Federal Supply Class:
5305
National Item Identification Number:
001066272
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:
| NAS1221-06-5P | 04348 | LAWRENCE ENGINEERING AND SUPPLY INC | | NAS1221-06-5P | 07851 | NOR-CAL SUPPLY CO | | NAS1221-06-5P | 08938 | AIR INDUSTRIES CO INC | | NAS1221-06-5P | 17446 | HUCK INTERNATIONAL, INC | | NAS1221-06-5P | 30902 | F AND C SALES INC | | NAS1221-06-5P | 56878 | SPS TECHNOLOGIES, LLC | | NAS1221-06-5P | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | NAS1221-06-5P | 73197 | HI-SHEAR CORPORATION | | NAS1221-06-5P | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | NAS1221-06-5P | 80539 | SPS TECHNOLOGIES, LLC | | NAS1221-06-5P | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | NAS1221-06-5P | 97928 | HUCK INTL INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.573 INCHES MINIMUM AND 0.620 INCHES MAXIMUM | | GRIP DIAMETER | 0.1355 INCHES MINIMUM AND 0.1375 INCHES MAXIMUM | | GRIP LENGTH | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6300 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | THREAD LENGTH | 0.251 INCHES MINIMUM AND 0.318 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 32 |
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