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 |
|---|---|
| 56878 | SPS TECHNOLOGIES LLC DBA AEROSPACE D |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASB | FASTENER LENGTH | 2.688 INCHES MINIMUM AND 2.735 INCHES MAXIMUM |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.564 INCHES NOMINAL FIRST HOLE |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.096 INCHES MINIMUM FIRST HOLE AND 0.116 INCHES MAXIMUM FIRST HOLE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SPS-M-107 FSCM 56878 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| AATB | WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 3A |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASU | HEAD HEIGHT | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| MATT | MATERIAL | STEEL OVERALL |
| AAUR | GRIP DIAMETER | 0.4982 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| AASK | HEAD STYLE | DOUBLE HEXAGON |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| AASA | THREAD LENGTH | 0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| ANEE | GRIP LENGTH | 2.178 INCHES MINIMUM AND 2.198 INCHES MAXIMUM |