| FEAT |
SPECIAL FEATURES |
THIS ITEM IS FLIGHT SAFETY CRITICAL. THREAD IS SAFETY CRITICAL PER MIL-S-7742 UNDER APPLICATION CATEGORY SAFETY CRITICAL. APPLY ONE COAT OF MIL-P-23377, TY 1, CL 1 OR 3 AND TWO TOP COATS OF MIL-C-46168, COLOR CODE 33538 PER FED-STD-595 TO TOP OF HEAD. THREAD AND SHOULDER ARE UNDERCUT FOR RELIEF. |
| AATN |
SHOULDER DIAMETER |
0.371 INCHES MINIMUM FIRST SHOULDER AND 0.373 INCHES MAXIMUM FIRST SHOULDER |
| AASB |
FASTENER LENGTH |
0.990 INCHES NOMINAL |
| AASA |
THREAD LENGTH |
0.397 INCHES MINIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
18 |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASK |
HEAD STYLE |
FLAT CHAMFER |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| CQBC |
MINIMUM TENSILE STRENGTH |
140000 POUNDS PER SQUARE INCH |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| MATT |
MATERIAL |
STEEL UNS K03104 OVERALL |
| ASDB |
WIDTH ACROSS FLATS |
0.188 INCHES NOMINAL |
| AASU |
HEAD HEIGHT |
0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| AATX |
SHOULDER LENGTH |
0.402 INCHES MINIMUM FIRST SHOULDER |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| CRTL |
CRITICALITY CODE JUSTIFICATION |
FEAT |
| AASL |
HEAD DIAMETER |
0.543 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.312 INCHES |