NSN 5306-00-031-0921

Part Details | SHEAR BOLT

5306-00-031-0921 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.

Alternate Parts: VS25218F91, VS2521-8F91, GB511B891, GB511B8-91, GB511B891, GB511B8-91, BM17020891, BM17020-8-91, GB511B891, GB511B8-91, GB511B891, GB511B8-91, EWSB228A91, EWSB22-8A91, EWSB2208A91, EWSB2208-A91, AIC516B891, AIC516B8-91, VAL220348F91, VAL22034-8F91, 5306-00-031-0921, 00-031-0921, 5306000310921, 000310921

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 28, 197200-031-092115903 ( BOLT, SHEAR )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5306-00-031-0921
Part Number Cage Code Manufacturer
VS2521-8F9106950ARCONIC GLOBAL FASTENERS & RINGS,INC.
GB511B8-9192215ARCONIC GLOBAL FASTENERS & RINGS,INC.
GB511B8-9173197HI-SHEAR CORPORATION
BM17020-8-9117446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
GB511B8-91L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
GB511B8-9126512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
EWSB22-8A9156878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
EWSB2208-A9180539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
AIC516B8-9106725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
VAL22034-8F9106710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-00-031-0921
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.006 INCHES MINIMUM AND 1.042 INCHES MAXIMUM
FASTENER LENGTH6.704 INCHES MINIMUM AND 6.720 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.281 INCHES NOMINAL
WIDTH BETWEEN FLATS0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM
GRIP LENGTH5.678 INCHES MINIMUM AND 5.698 INCHES MAXIMUM
GRIP DIAMETER0.4982 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT