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 |
|---|---|---|
| AASA | THREAD LENGTH | 1.697 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 4.057 INCHES MINIMUM AND 4.087 INCHES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 202500 POUNDS PER SQUARE INCH |
| FEAT | SPECIAL FEATURES | DOUBLE SHEAR 265,100 POUNDS MIN |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| AAJD | THREAD CLASS | 3A |
| MATT | MATERIAL | STEEL COMP 4340 OVERALL OR STEEL COMP 8740 OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUR | GRIP DIAMETER | 1.248 INCHES MINIMUM AND 1.249 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| AHYM | NOMINAL THREAD DIAMETER | 1.250 INCHES |
| AATC | EXTENDED WASHER DIAMETER | 2.115 INCHES MINIMUM AND 2.125 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 6484 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AATD | EXTENDED WASHER THICKNESS | 0.259 INCHES MINIMUM AND 0.279 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 1.519 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 12 |
| AASU | HEAD HEIGHT | 1.145 INCHES MINIMUM AND 1.165 INCHES MAXIMUM |
| ANEE | GRIP LENGTH | 2.365 INCHES MINIMUM AND 2.385 INCHES MAXIMUM |
| AASK | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |