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National Stock Number:
5306-01-073-6611
Federal Supply Class:
5306
National Item Identification Number:
010736611
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:
| 5169279-001 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 77720-14-48 | 56878 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| FASTENER LENGTH | 4.034 INCHES MINIMUM AND 4.064 INCHES MAXIMUM | | GRIP DIAMETER | 0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM | | GRIP LENGTH | 2.990 INCHES MINIMUM AND 3.010 INCHES MAXIMUM | | HEAD HEIGHT | 0.469 INCHES NOMINAL | | HEAD STYLE | DOUBLE HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | ASM 5844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COBALT COMP MP-35-N OVERALL | | MINIMUM TENSILE STRENGTH | 113000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.875 INCHES | | WIDTH BETWEEN FLATS | 1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.049 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 14 | | THREAD SERIES DESIGNATOR | UNJF |
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