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 |
| 81755 |
LOCKHEED MARTIN CORPORATION DBA LOCK |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES THREADS |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD |
| AATB |
WIDTH BETWEEN FLATS |
0.678 INCHES MINIMUM AND 0.689 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| AASB |
FASTENER LENGTH |
2.825 INCHES MINIMUM AND 2.872 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.440 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| CQBC |
MINIMUM TENSILE STRENGTH |
220000 POUNDS PER SQUARE INCH |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.438 INCHES |
| AAUR |
GRIP DIAMETER |
0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
46.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON |
| MATT |
MATERIAL |
STEEL COMP H11 OVERALL |
| ANEE |
GRIP LENGTH |
2.365 INCHES MINIMUM AND 2.385 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| AASU |
HEAD HEIGHT |
0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL |
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