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National Stock Number:
5305-01-472-9595
Federal Supply Class:
5305
National Item Identification Number:
014729595
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:
| MS3369B-1234 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| FASTENER LENGTH | 3.128 INCHES MINIMUM AND 3.148 INCHES MAXIMUM | | GRIP DIAMETER | 0.7486 INCHES MINIMUM AND 0.7491 INCHES MAXIMUM | | GRIP LENGTH | 2.125 INCHES MINIMUM AND 2.141 INCHES MAXIMUM | | HEAD HEIGHT | 0.376 INCHES MINIMUM AND 0.391 INCHES MAXIMUM | | HEAD STYLE | CROWNED HEXAGON | | INTERNAL DRIVE STYLE | SLOT | | LOCKING FEATURE | DETENT BALL GRIP | | MATERIAL | STEEL COMP XM-13 FASTENER | | MATERIAL | STEEL COMP 440C LOCKING FEATURE | | MATERIAL | STEEL COMP 631 OR STEEL COMP 302 SPRING | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | SPECIAL FEATURES | PLUNGER IN HEAD | | SPECIFICATION/STANDARD DATA | 96906-MS3369 GOVERNMENT STANDARD | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.987 INCHES MINIMUM AND 1.023 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 16 | | THREAD SERIES DESIGNATOR | UNJF | | WIDTH BETWEEN FLATS | 1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM |
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