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 |
| 81205 |
THE BOEING COMPANY DBA BOEING DIV DE |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AATB |
WIDTH BETWEEN FLATS |
0.429 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| ANEE |
GRIP LENGTH |
1.062 INCHES NOMINAL |
| AASU |
HEAD HEIGHT |
0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| SFTT |
SURFACE TREATMENT |
CHROMATE OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.2500 INCHES |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| MATT |
MATERIAL |
IRON ALLOY 660 OVERALL |
| AASB |
FASTENER LENGTH |
1.502 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.425 INCHES NOMINAL |
| AASK |
HEAD STYLE |
DISHED HEXAGON |
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