| MRC |
Requirement Statement |
Characteristics |
| CRSQ |
COUNTERSINK ANGLE |
59.75 DEGREES MINIMUM AND 60.25 DEGREES MAXIMUM |
| AASB |
FASTENER LENGTH |
1.487 INCHES MINIMUM AND 1.517 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| ANEE |
GRIP LENGTH |
1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM |
| AASL |
HEAD DIAMETER |
0.412 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
NAS621,COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATT |
MATERIAL |
TITANIUM ALLOY UNS R54520 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
| FEAT |
SPECIAL FEATURES |
BEARING SURFACE OF HEAD TO BE GROOVED TO 0.323 IN. MIN 0.325 IN. MAX DIA,0.050 IN. MIN 0.055 IN. MAX FROM TOP OF HEAD |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.352 INCHES MINIMUM AND 0.402 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
