NSN 5306-00-827-7801

Part Details | CLOSE TOLERANCE BOLT

5306-00-827-7801 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: 569749, 569749, 569749, 569749, 5306-00-827-7801, 00-827-7801, 5306008277801, 008277801

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 30, 196700-827-780127851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON EXTENDED WASHER

Cross Reference | NSN 5306-00-827-7801
Part Number Cage Code Manufacturer
56974992215ARCONIC GLOBAL FASTENERS & RINGS,INC.
56974980539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
56974911449TURBO POWER & MARINE SYSTEM INCSUB OF UNITED TECHNOLOGIES CORP
56974977445UNITED TECHNOLOGIES CORPORATIONDBA PRATT WHITNEY-SPARE PARTS
Technical Data | NSN 5306-00-827-7801
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.362 INCHES MINIMUM AND 0.442 INCHES MAXIMUM
FASTENER LENGTH0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH120000 POUNDS PER SQUARE INCH
HEAD STYLE DOUBLE HEXAGON EXTENDED WASHER
HEAD HEIGHT0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
GRIP LENGTH0.380 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM