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National Stock Number:
5306-01-612-0688
Federal Supply Class:
5306
National Item Identification Number:
016120688
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:
| 125634-08-29 | 56878 | SPS TECHNOLOGIES, LLC | | 20-101-08-29 | 56878 | SPS TECHNOLOGIES, LLC | | 20-101-08-29 | 97499 | BELL TEXTRON INC |
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Techincal Specification:
| FASTENER LENGTH | 2.730 INCHES NOMINAL | | FEATURES PROVIDED | SEALING RING | | GRIP DIAMETER | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM | | GRIP LENGTH | 1.859 INCHES MINIMUM AND 1.875 INCHES MAXIMUM | | HEAD HEIGHT | 0.250 INCHES MINIMUM AND 0.265 INCHES MAXIMUM | | HEAD STYLE | DISHED HEXAGON | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,SELF RETAINING,IMPEDANCE TYPE,NICKEL ALLOY 718 | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5662 OR AMS5663 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5678 ASSN STD SINGLE MATERIAL RESPONSE LOCKING FEATURE | | MATERIAL | NICKEL ALLOY 718 FASTENER | | MATERIAL | STEEL CORROSION RESISTING LOCKING FEATURE | | MINIMUM TENSILE STRENGTH | 25100 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE | | SPECIAL FEATURES | SHANK DOUBLE SHEAR STRENGTH AT 51800 LBS MIN; NICKEL ALLOY MATL RATED AT 220 KSI | | WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-35 OR AMS2700,METHOD 1,CL 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.638 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
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