NSN 5306-01-043-1877

Part Details | CLOSE TOLERANCE BOLT

5306-01-043-1877 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: STSBG003A5U059, STSBG003A5U059, STSBG003A5U059, STSBG003A57059, STSBG003A5U059, LS5995559, LS5995-5-59, 11699A05U059, STSBG003A5U059, STSBG003A5U059, STSBG003A5U059, STSBG003A5U059, STSBG003A5U059, 5306-01-043-1877, 01-043-1877, 5306010431877, 010431877

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUN 21, 197701-043-187727851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-01-043-1877
Part Number Cage Code Manufacturer
STSBG003A5U05992215ARCONIC GLOBAL FASTENERS & RINGS,INC.
STSBG003A5U05917446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
STSBG003A5U05997928HUCK INTL INC
STSBG003A570590JV78J M PRECISION INC
STSBG003A5U05998897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
LS5995-5-5998897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
11699A05U05959563REID PRODUCTS INC.DBA REID PRODUCTS
STSBG003A5U05957928SONIC INDUSTRIES INC.
STSBG003A5U05956878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
STSBG003A5U05906725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
STSBG003A5U05927624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
STSBG003A5U05906710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-01-043-1877
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.595 INCHES MINIMUM AND 0.645 INCHES MAXIMUM
FASTENER LENGTH4.292 INCHES MINIMUM AND 4.322 INCHES MAXIMUM
HEAD STYLE0 HEXAGON
HEAD HEIGHT0.309 INCHES MINIMUM AND 0.329 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
GRIP LENGTH3.677 INCHES MINIMUM AND 3.697 INCHES MAXIMUM
GRIP DIAMETER0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM