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National Stock Number:
5306-01-289-5009
Federal Supply Class:
5306
National Item Identification Number:
012895009
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:
| SS5116-6-28 | 56878 | SPS TECHNOLOGIES, LLC | | SS5116-6-28 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | SS5116-6-28 | 84256 | AVIBANK MFG., INC. | | SS5116-6-28 | 8Z923 | AVIBANK MFG INC AVIBANK EASTERN DISTRICT OFFICE |
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Techincal Specification:
| EXTENDED WASHER THICKNESS | 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM | | FASTENER LENGTH | 2.794 INCHES NOMINAL | | GRIP DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM | | GRIP LENGTH | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM | | HEAD HEIGHT | 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | MATERIAL | STEEL COMP XM-13 FASTENER | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SPECIAL FEATURES | FURNISHED WITH PAWL PH13-8MO PER AMS5629; SPRING CRES PER QQ-W-423 COMP 302 OR 304 COND B OR 17-7PH PER AMS 5678; PLUG 300 SERIES PER ASTM A582; GROOVE PIN 300 SERIES PER 66; FINISH PAWL DRY FILM LUB PER MIL-L-8937; SPRING WET ABRASIVE BLAST 17-7 PH | | WIDTH BETWEEN FLATS | 0.422 INCHES MINIMUM AND 0.437 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER | | SURFACE TREATMENT | PASSIVATE FASTENER | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 1.044 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 24 |
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