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 |
|---|---|
| 06950 | ALCOA GLOBAL FASTENERS INC. DBA ALCO |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CMLP | THREAD QUANTITY PER INCH | 24 |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| AASK | HEAD STYLE | SPLINE DRIVE SHEAR HEAD |
| AAJD | THREAD CLASS | 3A |
| AAUR | GRIP DIAMETER | 0.3733 INCHES MINIMUM AND 0.3742 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 0.454 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AAZH | HEAD MINOR DIAMETER | 0.679 INCHES MAXIMUM |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.920 INCHES MINIMUM FIRST HOLE AND 1.940 INCHES MAXIMUM FIRST HOLE |
| CQBC | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| SFTT | SURFACE TREATMENT | CADMIUM THREADS |
| AASU | HEAD HEIGHT | 0.210 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | CADMIUM TOP OF HEAD |
| MATT | MATERIAL | STEEL OVERALL |
| FEAT | SPECIAL FEATURES | DRY FILM LUBE PER MIL-H-8937B ON BEARING SURFACE OF HEAD AND GRIP |
| ANEE | GRIP LENGTH | 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES NOMINAL FIRST HOLE |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS672 NATIONAL SPEC SINGLE TREATMENT RESPONSE THREADS |
| AASB | FASTENER LENGTH | 2.132 INCHES MINIMUM AND 2.152 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS672 NATIONAL SPEC SINGLE TREATMENT RESPONSE TOP OF HEAD |