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National Stock Number:
5306-01-417-3821
Federal Supply Class:
5306
National Item Identification Number:
014173821
Description:
BOLT,SHEAR
Detail:
A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.
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Manufacturer Information:
| MS21250-20032 | 2Y363 | IMI SERVICES USA INC | | MS21250-20032 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| SPECIAL FEATURES | EXTERNAL WRENCHING DEVICE ON HEAD | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS21250-20032 | | THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 1.250 INCHES | | THREAD QUANTITY PER INCH | 12 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.760 INCHES NOMINAL | | FASTENER LENGTH | 3.780 INCHES NOMINAL | | MATERIAL | STEEL COMP 4140 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | HEAD STYLE | PAN | | HEAD DIAMETER | 2.115 INCHES MINIMUM AND | | 2.125 INCHES MAXIMUM | | HEAD HEIGHT | 1.155 INCHES NOMINAL | | GRIP LENGTH | 1.990 INCHES MINIMUM AND | | 2.010 INCHES MAXIMUM | | GRIP DIAMETER | 1.247 INCHES MINIMUM AND | | 1.249 INCHES MAXIMUM |
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