NSN 5306-01-332-4373

Part Details | CLOSE TOLERANCE BOLT

5306-01-332-4373 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: VS2978A04U009, VS2978A04U009, BM32004A009, BM3200-4A009, BM32004A009, BM3200-4A009, STSBG000A04U009, STSBG000A04U009, 11797A04U009, STSBG000A04U009, 684844A009, 68484-4A009, AIC2263A04U009, PBF1041A4U0009, VAL236114D009, VAL23611-4D009, 5306-01-332-4373, 01-332-4373, 5306013324373, 013324373

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 11, 199101-332-437327851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5306-01-332-4373
Part Number Cage Code Manufacturer
VS2978A04U00992215ARCONIC GLOBAL FASTENERS & RINGS,INC.
VS2978A04U00906950ARCONIC GLOBAL FASTENERS & RINGS,INC.
BM3200-4A00917446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BM3200-4A00997928HUCK INTL INC
STSBG000A04U00998897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
STSBG000A04U00952928PRINCE INDUSTRIES INC
11797A04U00959563REID PRODUCTS INC.DBA REID PRODUCTS
STSBG000A04U00957928SONIC INDUSTRIES INC.
68484-4A00956878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
AIC2263A04U00906725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF1041A4U000927624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
VAL23611-4D00906710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-01-332-4373
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.293 INCHES NOMINAL
FASTENER LENGTH0.855 INCHES NOMINAL
MINIMUM TENSILE STRENGTH132000 POUNDS PER SQUARE INCH
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.164 INCHES NOMINAL
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
GRIP LENGTH0.562 INCHES NOMINAL
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
FEATURES PROVIDED CETYL ALCOHOL LUBRICANT