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 |
---|---|---|
AATB | WIDTH BETWEEN FLATS | 0.547 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
AAUR | GRIP DIAMETER | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM |
CQBC | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
AATD | EXTENDED WASHER THICKNESS | 0.123 INCHES NOMINAL |
THSD | THREAD SERIES DESIGNATOR | UNJF |
MATT | MATERIAL | STEEL COMP 4140 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 6150 OVERALL |
AAJD | THREAD CLASS | 3A |
AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
AAJF | THREAD DIRECTION | RIGHT-HAND |
CRHC | HOLE CONFIGURATION STYLE | DOUBLE HEXAGON FLATS |
AATC | EXTENDED WASHER DIAMETER | 0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM |
AASA | THREAD LENGTH | 0.768 INCHES NOMINAL |
ASXK | HOLE QUANTITY | 4 |
ZZZK | SPECIFICATION/STANDARD DATA | 96906-MS21250H08006 GOVERNMENT STANDARD |
STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 11,CL 2 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
BQDM | HOLE TYPE | DRILLED |
AASB | FASTENER LENGTH | 1.010 INCHES MINIMUM AND 1.030 INCHES MAXIMUM |
AASU | HEAD HEIGHT | 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM |
AAUB | HOLE DIAMETER | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
CMLP | THREAD QUANTITY PER INCH | 20 |
AASK | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
ANEE | GRIP LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
SFTT | SURFACE TREATMENT | CADMIUM OVERALL |