Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , SHEAR
Definition:
A HIGH STRENGTH, 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH EXTERNALLY THREADED FASTENER DESIGNED FOR USE IN APPLICATIONS INVOLVING GREAT SHEAR STRESS. THE HEAD IS DESIGNED TO ACCOMMODATE AN EXTERNAL WRENCH OR DRIVER. 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. THE UNTHREADED PORTION IS OF SPECIFIC 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. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE BOLT, MACHINE AND BOLT, CLEVIS.
CAGE Information
| Code |
Company |
| 80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| CMLP |
THREAD QUANTITY PER INCH |
28.0 |
| AAJD |
THREAD CLASS |
3A |
| AASU |
HEAD HEIGHT |
0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CQBC |
MINIMUM TENSILE STRENGTH |
6980 POUNDS PER SQUARE INCH |
| AASK |
HEAD STYLE |
HEXAGON |
| AASB |
FASTENER LENGTH |
0.425 INCHES NOMINAL |
| AAUR |
GRIP DIAMETER |
0.263 INCHES MINIMUM AND 0.264 INCHES MAXIMUM |
| AATB |
WIDTH BETWEEN FLATS |
0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| ANEE |
GRIP LENGTH |
0.500 INCHES NOMINAL |
| AASA |
THREAD LENGTH |
0.250 INCHES NOMINAL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL |
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