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National Stock Number:
5305-01-465-2443
Federal Supply Class:
5305
National Item Identification Number:
014652443
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:
| 11825D4-7A | 59563 | REID PRODUCTS INC. | | 3M1170D4-7A | 76301 | THE BOEING COMPANY | | HP1170D4-7 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | TX1027D4-7A | 06725 | SPS TECHNOLOGIES, LLC | | TX1027D4-7A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1027D4-7A | 27624 | SPS TECHNOLOGIES LLC | | TX1027D4-7A | 56878 | SPS TECHNOLOGIES, LLC | | TX1027D4-7A | 73197 | HI-SHEAR CORPORATION | | TX1027D4-7A | 80539 | SPS TECHNOLOGIES, LLC | | TX1027D4-7A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1027D4-7A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | CRITICALITY CODE JUSTIFICATION | AGAV | | FASTENER LENGTH | 0.8475 INCHES MINIMUM AND 0.8775 INCHES MAXIMUM | | GRIP DIAMETER | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM | | GRIP LENGTH | 0.4275 INCHES MINIMUM AND 0.4475 INCHES MAXIMUM | | HEAD DIAMETER | 0.3859 INCHES MINIMUM AND 0.3948 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | TORX | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, 100 DEG REDUCED HEAD, GEAR DRIVE RECESS | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629, PH13-8MO ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | MINIMUM TENSILE STRENGTH | 4400 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT STYLE | FLAT | | SINGLE SHEAR STRENGTH | 125000 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | CHAMFERED END - CHAMFER PLUS INCOMPLETE THREADS NOT TO EXCEED 2 THREAD PITCHES | | SPLINE MINOR DIAMETER | 0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM | | SPLINE MAJOR DIAMETER | 0.1540 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.425 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNJF |
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