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 |
|---|---|
| 89372 | ROCKWELL INTERNATIONAL CORP NORTH AM |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AATC | EXTENDED WASHER DIAMETER | 0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| CQFM | HARDNESS RATING | 51.0 ROCKWELL C MINIMUM OVERALL AND 54.0 ROCKWELL C MAXIMUM OVERALL |
| ANEE | GRIP LENGTH | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 260000 POUNDS PER SQUARE INCH |
| AAJD | THREAD CLASS | 3A |
| AASB | FASTENER LENGTH | 1.391 INCHES MINIMUM AND 1.421 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CADMIUM OVERALL OR CHROMATE OVERALL |
| AASU | HEAD HEIGHT | 0.254 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6485 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837 TY 1 CL 2 MIL SPEC 1ST TREATMENT RESPONSE OVERALL OR MIL-C-8837 TY 2 CL 2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| AASA | THREAD LENGTH | 0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM |
| AAUR | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP H11 OVERALL |
| AATD | EXTENDED WASHER THICKNESS | 0.042 INCHES NOMINAL |
| AASK | HEAD STYLE | DOUBLE HEXAGON W/HOLE |