Part Number
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE UNTHREADED PORTION IS OF A SPECIFIED 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. 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. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS HAVING CLOSE TOLERANCE, AND FABRICATED FROM MATERIAL HAVING 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH, SEE BOLT, SHEAR. FOR ITEMS FABRICATED FROM MATERIAL HAVING LESS THAN 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH AND NOT HAVING A CLOSE TOLERANCE, SEE BOLT, MACHINE.
CAGE Information
| Code | Company |
|---|---|
| 80205 | NATIONAL AEROSPACE STANDARDS COMMITT |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AATB | WIDTH BETWEEN FLATS | 18.67 MILLIMETERS MINIMUM AND 19.0 MILLIMETERS MAXIMUM |
| ANEE | GRIP LENGTH | 31.8 MILLIMETERS MINIMUM AND 32.2 MILLIMETERS MAXIMUM |
| CQWR | EXTERNAL THREAD TOLERANCE CLASS | 4H6H |
| AASA | THREAD LENGTH | 15.5 MILLIMETERS MINIMUM AND 16.5 MILLIMETERS MAXIMUM |
| MATT | MATERIAL | STEEL COMP 4340 OVERALL OR STEEL COMP 8740 OVERALL |
| CQBC | MINIMUM TENSILE STRENGTH | 1100 MEGAPASCALS |
| AASU | HEAD HEIGHT | 5.7 MILLIMETERS MINIMUM AND 6.0 MILLIMETERS MAXIMUM |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 42.0 MILLIMETERS NOMINAL FIRST HOLE |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AHYM | NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS |
| THSD | THREAD SERIES DESIGNATOR | MJ |
| CQQR | THREAD PITCH IN MILLIMETERS | 1.25 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY II,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 2.40 MILLIMETERS MINIMUM FIRST HOLE AND 2.54 MILLIMETERS MAXIMUM FIRST HOLE |
| AASK | HEAD STYLE | DISHED HEXAGON |
| CSYM | SURFACE FINISH | 0.8 MICROMETERS BEARING SURFACE OF HEAD |
| CSYM | SURFACE FINISH | 0.8 MICROMETERS GRIP |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| AAUR | GRIP DIAMETER | 11.959 MILLIMETERS MINIMUM AND 11.984 MILLIMETERS MAXIMUM |
| AASB | FASTENER LENGTH | 47.7 MILLIMETERS MINIMUM AND 48.3 MILLIMETERS MAXIMUM |