NSN 5306-01-644-9302
Part Details | CLOSE TOLERANCE BOLT
5306-01-644-9302 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: BACB30NX5HK6, 5306-01-644-9302, 01-644-9302, 5306016449302, 016449302
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAY 27, 2015 | 01-644-9302 | 27851 ( BOLT, CLOSE TOLERANCE ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
HEXAGON
Cross Reference | NSN 5306-01-644-9302
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| BACB30NX5HK6 | 81205 | THE BOEING COMPANYDBA BOEING |
Technical Data | NSN 5306-01-644-9302
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNJC |
| NOMINAL THREAD DIAMETER | 0.1640 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.312 INCHES NOMINAL |
| FASTENER LENGTH | 0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM |
| HEAD STYLE | 9 CROWNED HEXAGON |
| INTERNAL DRIVE STYLE | HEXAGON |
| HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| HEAD HEIGHT | 0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
| GRIP LENGTH | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM |
| GRIP DIAMETER | 0.1621 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM |
| FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT |
| SPECIAL FEATURES | BOLT HAS HEX INTERNAL DRIVE WITH .0791 - .0806 INCH WIDTH ACROSS THE FLATS IN THE THREADED END THAT IS .140 INCHES DEEP. |
| END ITEM IDENTIFICATION | E-3 BLOCK 404 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, PROTRUDING HEAD |
