Part Number
Part Number:
NSN:
NIIN:
Item Name:
SCREW , CLOSE TOLERANCE
Definition:
A SCREW, MACHINE OR SCREW, CAP, SOCKET HEAD WHOSE UNTHREADED PORTION IS OF SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001 IN.) (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS (1.000 IN.) (25 MM) OR LESS IN DIAMETER. ITEMS OVER (1.000 IN.) (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN THOUSANDTHS (0.0015 IN.) (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001 IN.) (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 DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER. IT IS NOT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS.
CAGE Information
Code |
Company |
80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
AASU |
HEAD HEIGHT |
0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
MATT |
MATERIAL |
TITANIUM ALLOY UNS R56400 OVERALL |
THSD |
THREAD SERIES DESIGNATOR |
UNJF |
ABQZ |
INTERNAL DRIVE STYLE |
TORQUE-SET RIBBED |
AAJD |
THREAD CLASS |
3A |
AATB |
WIDTH BETWEEN FLATS |
0.305 INCHES MINIMUM AND 0.314 INCHES MAXIMUM |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AAUR |
GRIP DIAMETER |
0.167 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
AASA |
THREAD LENGTH |
0.468 INCHES MAXIMUM |
AASK |
HEAD STYLE |
HEXAGON |
CMLP |
THREAD QUANTITY PER INCH |
32 |
ANEE |
GRIP LENGTH |
0.032 INCHES MINIMUM |
AASB |
FASTENER LENGTH |
0.484 INCHES MINIMUM AND 0.531 INCHES MAXIMUM |
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