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National Stock Number:
5306-01-361-3549
Federal Supply Class:
5306
National Item Identification Number:
013613549
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:
| A78325-6H-7 | 56878 | SPS TECHNOLOGIES, LLC | | A78325-6H-7 | 94697 | MOOG INC |
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Techincal Specification:
| EXTENDED WASHER THICKNESS | 0.044 INCHES MINIMUM AND 0.064 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 0.691 INCHES MINIMUM AND 0.701 INCHES MAXIMUM | | FASTENER LENGTH | 1.081 INCHES MINIMUM AND 1.111 INCHES MAXIMUM | | GRIP LENGTH | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM | | GRIP DIAMETER | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM | | HEAD HEIGHT | 0.327 INCHES MINIMUM AND 0.347 INCHES MAXIMUM | | HEAD MINOR DIAMETER | 0.448 INCHES MINIMUM AND 0.453 INCHES MAXIMUM | | HEAD STYLE | SPLINE EXTENDED WASHER | | HOLE CONFIGURATION STYLE | SPLINE | | HOLE DIAMETER | 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM | | HOLE QUANTITY | 4 | | HOLE TYPE | DRILLED | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY 718 OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.634 INCHES MINIMUM AND 0.684 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 24 |
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