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National Stock Number:
5306-01-354-7717
Federal Supply Class:
5306
National Item Identification Number:
013547717
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:
| 110185-4-M4 | 56878 | SPS TECHNOLOGIES, LLC | | AIC518-4-4 | 06725 | SPS TECHNOLOGIES, LLC | | BM15016-4-4A | 17419 | DEUTSCH CO THE | | GB511BY4M4 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | GB511BY4M4 | 27624 | SPS TECHNOLOGIES LLC | | GB511BY4M4 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VEH160271-4M4 | 06710 | VALLEY-TODECO, INC. |
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Techincal Specification:
| FASTENER LENGTH | 0.670 INCHES MINIMUM AND 0.680 INCHES MAXIMUM | | FEATURES PROVIDED | DRY FILM LUBRICANT | | GRIP DIAMETER | 0.2495 INCHES MINIMUM AND 0.2940 INCHES MAXIMUM | | GRIP LENGTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | HEAD HEIGHT | 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM | | HEAD STYLE | DISHED HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-L-8937 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | DISULFIDE MOLYBDENUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.425 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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