NSN 5306-01-505-9896

Part Details | CLOSE TOLERANCE BOLT

5306-01-505-9896 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.

Alternate Parts: GS1031421, GS1031-4-21, ST3M747421, ST3M747-4-21, ST3M747421, ST3M747-4-21, HP7747421, HP7747-4-21, MB155421, MB155-4-21, ST3M747421, ST3M747-4-21, S397421, S397-4-21, MB155421, MB155-4-21, SLB254421, SLB254-4-21, 122896421, 122896-4-21, 122896421, 122896-4-21, 122896421, 122896-4-21, AIC688421, AIC688-4-21, PBF1266421, PBF1266-4-21, VCG0002421, VCG0002-4-21, 5306-01-505-9896, 01-505-9896, 5306015059896, 015059896

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 20, 200301-505-989627851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-01-505-9896
Part Number Cage Code Manufacturer
GS1031-4-211EM77B & B SPECIALTIES INC.DBA G S AEROSPACE DIVISION DIV GS
ST3M747-4-2176301BOEING COMPANY, THEDBA BOEING
ST3M747-4-2158998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
HP7747-4-210ZC92HEARTLAND PRECISION FASTENERS, INC.
MB155-4-2173197HI-SHEAR CORPORATION
ST3M747-4-211VSL7HOUSTON PRECISION FASTENERS I, LP
S397-4-2117446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
MB155-4-21L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
SLB254-4-2116258SPACE-LOK, INC.
122896-4-210PTK6SPS TECHNOLOGIES INC
122896-4-2156878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
122896-4-2180539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
AIC688-4-2106725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF1266-4-2127624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
VCG0002-4-2106710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-01-505-9896
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.397 INCHES NOMINAL
FASTENER LENGTH1.694 INCHES MINIMUM AND 1.741 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD STYLE2 HEXAGON
HEAD HEIGHT0.164 INCHES NOMINAL
HEAD MINOR DIAMETER0.522 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
GRIP LENGTH1.303 INCHES MINIMUM AND 1.323 INCHES MAXIMUM
GRIP DIAMETER0.422 INCHES MINIMUM AND 0.446 INCHES MAXIMUM
CRITICALITY CODE JUSTIFICATIONAGAV
END ITEM IDENTIFICATIONF18 E/F
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT,CLOSE TOLERANCE, SPLINE DRIVE,CRES (125 KSI FSU)