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 |
|---|---|---|
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL OR MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OVERALL OR MIL-S-8695 MIL SPEC 6TH MATERIAL RESPONSE OVERALL |
| AAUR | GRIP DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASU | HEAD HEIGHT | 0.188 INCHES NOMINAL |
| AASA | THREAD LENGTH | 0.391 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 2.329 INCHES NOMINAL |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES NOMINAL FIRST HOLE |
| AASK | HEAD STYLE | DISHED HEXAGON |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| MATT | MATERIAL | STEEL COMP 6150 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 4037 OVERALL |
| ANEE | GRIP LENGTH | 1.938 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.209 INCHES NOMINAL FIRST HOLE |