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National Stock Number:
5306-01-323-4150
Federal Supply Class:
5306
National Item Identification Number:
013234150
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:
| 4076828 | 77445 | RTX CORPORATION | | 5306PL1499443 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.294 INCHES NOMINAL | | FASTENER LENGTH | 0.640 INCHES MINIMUM AND | | 0.660 INCHES MAXIMUM | | MATERIAL | NICKEL ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | PWA 96,CAGE77445 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | HEAD HEIGHT | 0.190 INCHES MINIMUM AND | | 0.200 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.250 INCHES NOMINAL | | EXTENDED WASHER DIAMETER | 0.315 INCHES MINIMUM AND | | 0.325 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.065 INCHES NOMINAL | | GRIP LENGTH | 0.270 INCHES MINIMUM AND | | 0.342 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND | | 0.1895 INCHES MAXIMUM | | SURFACE FINISH | 250.0 MICROINCHES POINT | | 32.0 MICROINCHES GRIP | | SPECIAL FEATURES | CENTER HOLE IN TOP OF HEAD 0.090/0.110 IN. DIA X 0.065 IN. DEEP;THREADSMODIFIED MAJOR DIA 0.1840/0.1875 IN. |
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