Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , MACHINE
Definition:
AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION THROUGH HOLES IN ASSEMBLED PARTS AND NORMALLY INTENDED TO BE TIGHTENED OR RELEASED BY TORQUING A NUT. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF ONE NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER OR BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. FOR ITEMS HAVING A GRIP LENGTH PORTION MACHINED TO A TOLERANCE OF 0.0015 INCH (0.038 MM) OR LESS, BOLT, SHEAR. SEE ALSO SCREW, CAP, HEXAGON HEAD AND SCREW, MACHINE.
CAGE Information
Code | Company |
---|---|
78286 | SIKORSKY AIRCRAFT CORPORATION |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
ANEE | GRIP LENGTH | 1.187 INCHES NOMINAL |
CMLP | THREAD QUANTITY PER INCH | 24 |
AATC | EXTENDED WASHER DIAMETER | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM |
CQBC | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
CBBL | FEATURES PROVIDED | FINISHED HEAD |
AAJD | THREAD CLASS | 3A |
AASA | THREAD LENGTH | 0.688 INCHES MINIMUM |
AAJF | THREAD DIRECTION | RIGHT-HAND |
MATT | MATERIAL | STEEL OVERALL |
AASU | HEAD HEIGHT | 0.325 INCHES MINIMUM AND 0.345 INCHES MAXIMUM |
THSD | THREAD SERIES DESIGNATOR | UNF |
AASB | FASTENER LENGTH | 1.875 INCHES NOMINAL |
CQFM | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
AATD | EXTENDED WASHER THICKNESS | 0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM |
AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
AASK | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
AATB | WIDTH BETWEEN FLATS | 0.437 INCHES NOMINAL |