NSN 5306-01-188-6843

Part Details | CLOSE TOLERANCE BOLT

5306-01-188-6843 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: VS3207411D, VS3207-4-11D, SC2663411D, SC2663-4-11D, ST3M7314D11, ST3M731-4D11, MB2514D11, MB251-4D11, MB2514D11, MB251-4D11, 8016514D11, 801651-4D11, ST3M7314D11, ST3M731-4D11, PBF12644D11, PBF1264-4D11, 5306-01-188-6843, 01-188-6843, 5306011886843, 011886843

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 07, 198401-188-684327851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-01-188-6843
Part Number Cage Code Manufacturer
VS3207-4-11D92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
SC2663-4-11D06950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M731-4D1176301BOEING COMPANY, THEDBA BOEING
MB251-4D1173197HI-SHEAR CORPORATION
MB251-4D11L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
801651-4D110PTK6SPS TECHNOLOGIES INC
ST3M731-4D11K5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
PBF1264-4D1127624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5306-01-188-6843
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM
FASTENER LENGTH1.098 INCHES MINIMUM AND 1.128 INCHES MAXIMUM
HEAD STYLE HEXAGON
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
GRIP LENGTH0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
FEATURES PROVIDED FINISHED HEAD