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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
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AATD EXTENDED WASHER THICKNESS 0.059 INCHES MINIMUM
MATT MATERIAL TITANIUM ALLOY UNS R56400 OVERALL
THSD THREAD SERIES DESIGNATOR UNJF
AASB FASTENER LENGTH 0.860 INCHES NOMINAL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AS-4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1271 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
CBBL FEATURES PROVIDED FINISHED HEAD
AAJD THREAD CLASS 3A
CSYM SURFACE FINISH 16.0 MICROINCHES THREADS
AHYM NOMINAL THREAD DIAMETER 0.250 INCHES
CMLP THREAD QUANTITY PER INCH 28
CSYM SURFACE FINISH 63.0 MICROINCHES GRIP
AAJF THREAD DIRECTION RIGHT-HAND
AATC EXTENDED WASHER DIAMETER 0.360 INCHES NOMINAL
AASU HEAD HEIGHT 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
CSYM SURFACE FINISH 63.0 MICROINCHES BEARING SURFACE OF HEAD
AASA THREAD LENGTH 0.485 INCHES NOMINAL
AATB WIDTH BETWEEN FLATS 0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
ANEE GRIP LENGTH 0.375 INCHES NOMINAL
AASK HEAD STYLE DOUBLE HEXAGON EXTENDED WASHER

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