NSN 5306-00-206-3906
Part Details | MACHINE BOLT
5306-00-206-3906 An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.
Alternate Parts: 5B18C25A, NAS501425A, NAS501-4-25A, 5306-00-206-3906, 00-206-3906, 5306002063906, 002063906
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | JAN 01, 1963 | 00-206-3906 | 01847 ( BOLT, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON

Cross Reference | NSN 5306-00-206-3906
Part Number | Cage Code | Manufacturer |
---|---|---|
5B18C25A | 43999 | BOEING COMPANY, THEDBA BOEING |
NAS501-4-25A | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
Technical Data | NSN 5306-00-206-3906
Characteristic | Specifications |
---|---|
HEAD STYLE | HEXAGON |
THREAD SERIES DESIGNATOR | UNF |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
THREAD QUANTITY PER INCH | 28 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.436 INCHES MINIMUM AND 0.515 INCHES MAXIMUM |
FASTENER LENGTH | 2.640 INCHES MINIMUM AND 2.687 INCHES MAXIMUM |
HEAD HEIGHT | 0.156 INCHES NOMINAL |
WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
GRIP LENGTH | 2.188 INCHES NOMINAL |
FEATURES PROVIDED | FINISHED HEAD |