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National Stock Number:
5306-00-876-1391
Federal Supply Class:
5306
National Item Identification Number:
008761391
Description:
BOLT,SHEAR
Detail:
A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.
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Manufacturer Information:
| 202-15520-4-8 | 80378 | TRIUMPH AEROSTRUCTURES, LLC | | AIC220-4A8 | 06725 | SPS TECHNOLOGIES, LLC | | BM55132-4-8A | 17446 | HUCK INTERNATIONAL, INC | | EWSB22-4A8 | 56878 | SPS TECHNOLOGIES, LLC | | C081-4-8 | 81755 | LOCKHEED MARTIN CORPORATION | | BM55132-4-8A | 97928 | HUCK INTL INC | | GB511B4-8 | 06710 | VALLEY-TODECO, INC. | | VS2521F4-8 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | GB11B4-8 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | PBF10784-8 | 27624 | SPS TECHNOLOGIES LLC | | EWSB22-4A8 | 80539 | SPS TECHNOLOGIES, LLC | | GB511B4-8 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VS2521F4-8 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.273 INCHES MINIMUM AND | | 0.334 INCHES MAXIMUM | | FASTENER LENGTH | 0.783 INCHES MINIMUM AND | | 0.824 INCHES MAXIMUM | | MATERIAL | STEEL OR | | STEEL COMP H11 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | SPS-M-107 FSCM 56878 MFR REF 1ST MATERIAL RESPONSE OR | | AMS6485 ASSN STD 2ND MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND | | 50.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | HEAD STYLE | DOUBLE HEXAGON | | HEAD HEIGHT | 0.154 INCHES MINIMUM AND | | 0.174 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND | | 0.439 INCHES MAXIMUM | | GRIP LENGTH | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | GRIP DIAMETER | 0.2483 INCHES MINIMUM AND | | 0.2492 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 27624 | | DESIGN CONTROL REFERENCE | PBF10784-8 |
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