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 |
---|---|
77272 | THE BOEING COMPANY DBA BOEING |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
AAUR | GRIP DIAMETER | 0.5605 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM |
AASA | THREAD LENGTH | 0.803 INCHES MINIMUM AND 0.853 INCHES MAXIMUM |
AATD | EXTENDED WASHER THICKNESS | 0.123 INCHES MINIMUM AND 0.143 INCHES MAXIMUM |
TEST | TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION |
THSD | THREAD SERIES DESIGNATOR | UNJF |
AASB | FASTENER LENGTH | 6.563 INCHES MINIMUM AND 6.593 INCHES MAXIMUM |
ANEE | GRIP LENGTH | 5.740 INCHES MINIMUM AND 5.760 INCHES MAXIMUM |
CMLP | THREAD QUANTITY PER INCH | 18 |
AAJD | THREAD CLASS | 3A |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SPS-M-107 FSCM 81205 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
AAJF | THREAD DIRECTION | RIGHT-HAND |
AASU | HEAD HEIGHT | 0.547 INCHES MINIMUM AND 0.567 INCHES MAXIMUM |
AATC | EXTENDED WASHER DIAMETER | 0.928 INCHES MINIMUM AND 0.938 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 |
AHYM | NOMINAL THREAD DIAMETER | 0.562 INCHES |
AATB | WIDTH BETWEEN FLATS | 0.615 INCHES MINIMUM AND 0.627 INCHES MAXIMUM |
CQFM | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM OVERALL |
FEAT | SPECIAL FEATURES | EXTENDED WASHER HEAD MACHINED FLAT,0.360 IN FROM CENTER LINE OF SHANK |
SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
AASK | HEAD STYLE | DOUBLE HEXAGON W/HOLE |