Part Number
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 |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AATD | EXTENDED WASHER THICKNESS | 0.212 INCHES MINIMUM AND 0.232 INCHES MAXIMUM |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES GRIP |
| CQBC | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| MATT | MATERIAL | STEEL COMP 8740 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 6150 OVERALL |
| AATC | EXTENDED WASHER DIAMETER | 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 3A |
| ANEE | GRIP LENGTH | 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.913 INCHES MINIMUM AND 0.933 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY2,CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASB | FASTENER LENGTH | 3.114 INCHES MINIMUM AND 3.134 INCHES MAXIMUM |
| AAUR | GRIP DIAMETER | 0.998 INCHES MINIMUM AND 0.999 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 12 |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| AATB | WIDTH BETWEEN FLATS | 1.047 INCHES MINIMUM AND 1.062 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 1.000 INCHES |
| AASA | THREAD LENGTH | 1.479 INCHES MINIMUM AND 1.519 INCHES MAXIMUM |
| AASK | HEAD STYLE | DOUBLE HEXAGON W/HOLE |