Follow Us on Google+

Request A Price Quote:

Part Number

Part Number:
NSN:
NIIN:
Item Name:
BOLT , CLOSE TOLERANCE

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE UNTHREADED PORTION IS OF A SPECIFIED 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. 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. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS HAVING CLOSE TOLERANCE, AND FABRICATED FROM MATERIAL HAVING 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH, SEE BOLT, SHEAR. FOR ITEMS FABRICATED FROM MATERIAL HAVING LESS THAN 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH AND NOT HAVING A CLOSE TOLERANCE, SEE BOLT, MACHINE.

CAGE Information

Code Company
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
MATT MATERIAL TITANIUM ALLOY UNS R56400 OVERALL
AATD EXTENDED WASHER THICKNESS 0.059 INCHES MINIMUM AND 0.079 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNJF
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1271 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
AAJD THREAD CLASS 3A
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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
AAUB HOLE DIAMETER 0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM
AASA THREAD LENGTH 0.460 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AASB FASTENER LENGTH 0.845 INCHES MINIMUM AND 0.875 INCHES MAXIMUM
AATC EXTENDED WASHER DIAMETER 0.360 INCHES NOMINAL
AASU HEAD HEIGHT 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
CRHC HOLE CONFIGURATION STYLE DOUBLE HEXAGON LONGITUDINAL HOLE
CSYM SURFACE FINISH 63.0 MICROINCHES BEARING SURFACE OF HEAD
AAUR GRIP DIAMETER 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
ASXK HOLE QUANTITY 4
BQDM HOLE TYPE DRILLED
AATB WIDTH BETWEEN FLATS 0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
AASK HEAD STYLE DOUBLE HEXAGON EXTENDED WASHER
ANEE GRIP LENGTH 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM

Similar Parts

NAS1271H6 , NAS1271H6 , 5306-01-266-8576 , 5306012668576 , 012668576