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National Stock Number:
5305-01-481-0010
Federal Supply Class:
5305
National Item Identification Number:
014810010
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:
| 11827D8-28A | 59563 | REID PRODUCTS INC. | | 3M1169D8-28A | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 2.4700 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM | | GRIP DIAMETER | 0.4985 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM | | GRIP LENGTH | 1.7400 INCHES MINIMUM AND 1.7600 INCHES MAXIMUM | | HEAD DIAMETER | 1.0001 INCHES MINIMUM AND 1.0139 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | TORX | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,100 DEGREE TENSION HEAD,GEAR DRIVE RECESS-PH13-8MO (125 KSI SHEAR), INCONEL 718 (125 KSI SHEAR), 6AL-4V TITANIUM (95 KSI SHEAR) | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | SPLINE MAJOR DIAMETER | 0.4440 INCHES MINIMUM AND 0.4490 INCHES MAXIMUM | | SPLINE MINOR DIAMETER | 0.3135 INCHES MINIMUM AND 0.3185 INCHES MAXIMUM | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.735 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 20 |
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