NIIN Output Data
NIIN:
NSN:
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.
Reference/Part Number
CAGE Information
Code |
Company |
06950 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
26512 |
NORTHROP GRUMMAN SYSTEMS CORPORATION |
59878 |
THOMPSON MFG CO INC |
97928 |
HUCK INTL INC |
92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
58845 |
ABOUNDING SECURITY INC DIV OF MAA CO |
56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
73197 |
HI-SHEAR CORPORATION |
L4528 |
LISI AEROSPACE CANADA CORP |
17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
27624 |
PAUL R. BRILES INC. DBA PB FASTENERS |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
AASL |
HEAD DIAMETER |
0.325 INCHES MINIMUM AND 0.387 INCHES MAXIMUM |
CRSQ |
COUNTERSINK ANGLE |
100.0 DEGREES NOMINAL |
CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
AASB |
FASTENER LENGTH |
1.011 INCHES MINIMUM AND 1.041 INCHES MAXIMUM |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
THSD |
THREAD SERIES DESIGNATOR |
UNF |
AAUR |
GRIP DIAMETER |
0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
ANEE |
GRIP LENGTH |
0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM |
ZZZK |
SPECIFICATION/STANDARD DATA |
26512-GB510F MANUFACTURERS STANDARD |
AAJD |
THREAD CLASS |
2A |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
NAS621,COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
AASA |
THREAD LENGTH |
0.313 INCHES MINIMUM AND 0.363 INCHES MAXIMUM |
MATT |
MATERIAL |
TITANIUM ALLOY UNS R54520 OVERALL |
ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
CMLP |
THREAD QUANTITY PER INCH |
32 |
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