5340-00-487-0250 CATCH,CLAMPING Index 4810-00-487-0260 SEAT,VALVE

National Stock Number:
5306-00-487-0255

Federal Supply Class:
5306

National Item Identification Number:
004870255

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.


Manufacturer Information:
2155-4-698524MONOGRAM AEROSPACE FASTENERS, INC
3186979-10ZWK8MOOG INC.
72550-4-756878SPS TECHNOLOGIES, LLC
3186979-177068ALLIED-SIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO ELECTRODYNAMICS DIV
3186979-192215HOWMET GLOBAL FASTENING SYSTEMS INC
3186979-198524MONOGRAM AEROSPACE FASTENERS, INC
72550-4-780539SPS TECHNOLOGIES, LLC
VS3045-192215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.059 INCHES MINIMUM AND 0.079 INCHES MAXIMUM
FASTENER LENGTH0.870 INCHES MINIMUM AND 0.900 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH0.330 INCHES MINIMUM AND 0.400 INCHES MAXIMUM
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON W/HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONSPS-M-107,STANDARD PRESSED STEEL CO MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
WIDTH BETWEEN FLATS0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.470 INCHES MINIMUM AND 0.570 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNJF


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