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 |
| 78286 |
SIKORSKY AIRCRAFT CORPORATION |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
| SFTT |
SURFACE TREATMENT |
CADMIUM GRIP AND CHROMATE GRIP |
| CQBC |
MINIMUM TENSILE STRENGTH |
180000 POUNDS PER SQUARE INCH |
| ANEE |
GRIP LENGTH |
8.562 INCHES NOMINAL |
| MATT |
MATERIAL |
STEEL COMP 4130 OVERALL OR STEEL COMP 8740 OVERALL |
| AASA |
THREAD LENGTH |
0.626 INCHES MINIMUM AND 0.672 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.219 INCHES NOMINAL |
| AAJD |
THREAD CLASS |
3A |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TYPE2,CLASS3 FED SPEC ALL TREATMENT RESPONSES GRIP |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| SFTT |
SURFACE TREATMENT |
CADMIUM HEAD AND CHROMATE HEAD |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TYPE2,CLASS3 FED SPEC ALL TREATMENT RESPONSES HEAD |
| AASB |
FASTENER LENGTH |
9.187 INCHES MINIMUM AND 9.234 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| CQFM |
HARDNESS RATING |
39.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| AASK |
HEAD STYLE |
HEXAGON |
| AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
| AATB |
WIDTH BETWEEN FLATS |
0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.3737 INCHES MINIMUM AND 0.3742 INCHES MAXIMUM |
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