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National Stock Number:
5306-01-579-7167
Federal Supply Class:
5306
National Item Identification Number:
015797167
Description:
BOLT,CLOSE TOLERANCE
Detail:
An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.
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Manufacturer Information:
| NAS6210-34H | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| FASTENER LENGTH | 3.063 INCHES NOMINAL | | GRIP DIAMETER | 0.623 INCHES MINIMUM AND 0.624 INCHES MAXIMUM | | GRIP LENGTH | 2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM | | HEAD HEIGHT | 0.312 INCHES NOMINAL | | HEAD STYLE | DISHED HEXAGON | | PART NAME ASSIGNED BY CONTROLLING AGENCY | INAVY: HEX HD BOLT; STD: BOLT, TENSION, HEX HEAD, CLOSE TOLERANCE, ALLOY STEEL, SHORT THREAD, REDUCED MAJOR THREAD DIA., NON-LOCKING, 160KSI FTU | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6349 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6415 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6484 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-DTL-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE | | MATERIAL | PLASTIC NYLON LOCKING FEATURE | | MATERIAL | STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | WIDTH BETWEEN FLATS | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416, TYPE II, CLASS 2, EMBRITTLEMENT REQUIREMENT PER NAS4002 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.626 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNJF |
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