NSN 5306-00-958-8381

Part Details | CLOSE TOLERANCE BOLT

5306-00-958-8381 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: STSBG003A10U026, LS59951026, LS5995-10-26, 11699A10U026, STSBG003A10U026, STSBG003A10U026, STSBG003A10U026, STSBG003A10U026, STSBG003A10U026, 5306-00-958-8381, 00-958-8381, 5306009588381, 009588381

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 20, 196600-958-838127851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON EXTENDED WASHER

Cross Reference | NSN 5306-00-958-8381
Part Number Cage Code Manufacturer
STSBG003A10U02698897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
LS5995-10-2698897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
11699A10U02659563REID PRODUCTS INC.DBA REID PRODUCTS
STSBG003A10U02657928SONIC INDUSTRIES INC.
STSBG003A10U02656878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
STSBG003A10U02606725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
STSBG003A10U02627624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
STSBG003A10U02606710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-00-958-8381
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.625 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.896 INCHES MINIMUM AND 0.906 INCHES MAXIMUM
FASTENER LENGTH2.511 INCHES MINIMUM AND 2.541 INCHES MAXIMUM
HEAD STYLE DOUBLE HEXAGON EXTENDED WASHER
HEAD HEIGHT0.494 INCHES NOMINAL
WIDTH BETWEEN FLATS0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM
EXTENDED WASHER DIAMETER1.040 INCHES MINIMUM AND 1.050 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.150 INCHES NOMINAL
GRIP LENGTH1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM
GRIP DIAMETER0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM