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National Stock Number:
5306-00-150-3557
Federal Supply Class:
5306
National Item Identification Number:
001503557
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:
| GB511W12-29 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | LWB22-12-29 | 56878 | SPS TECHNOLOGIES, LLC | | LWB22-12-29 | 80539 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | THREAD QUANTITY PER INCH | 16 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.984 INCHES MINIMUM AND | | 1.034 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6485 ASSN STD 1ST MATERIAL RESPONSE OR | | AMS 6487 ASSN STD 1ST MATERIAL RESPONSE OR | | SPS-M-107 FSCM @56878 MFR REF 2ND MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND | | 50.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | DOUBLE HEXAGON W/HOLE | | HEAD HEIGHT | 0.701 INCHES MINIMUM AND | | 0.721 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.803 INCHES MINIMUM AND | | 0.814 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 1.040 INCHES MINIMUM AND | | 1.050 INCHES MAXIMUM | | EXTENDED WASHER THICKNESS | 0.168 INCHES MINIMUM AND | | 0.188 INCHES MAXIMUM | | GRIP LENGTH | 1.802 INCHES MINIMUM AND | | 1.822 INCHES MAXIMUM | | SPECIFICATION/STANDARD DATA | 56878-LWB22 MANUFACTURERS STANDARD | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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