National Stock Number (NSN) Output Data
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.
Reference/Part Number
CAGE Information
Code |
Company |
06950 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
58998 |
EMHART TEKNOLOGIES LLC DBA FASTENER |
76301 |
BOEING COMPANY THE DBA BOEING |
56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
97928 |
HUCK INTL INC |
L4528 |
LISI AEROSPACE CANADA CORP |
73197 |
HI-SHEAR CORPORATION |
60516 |
WEST COAST AEROSPACE INC |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
CMLP |
THREAD QUANTITY PER INCH |
24 |
THSD |
THREAD SERIES DESIGNATOR |
UNJF |
MATT |
MATERIAL |
STEEL CORROSION RESISTING OVERALL |
AASL |
HEAD DIAMETER |
0.752 INCHES MINIMUM AND 0.762 INCHES MAXIMUM |
AAJD |
THREAD CLASS |
3A |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
23-112 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
AASA |
THREAD LENGTH |
0.366 INCHES MINIMUM AND 0.416 INCHES MAXIMUM |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AAUR |
GRIP DIAMETER |
0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM |
AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
AASB |
FASTENER LENGTH |
3.376 INCHES MINIMUM AND 3.406 INCHES MAXIMUM |
AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.106 INCHES MINIMUM FIRST HOLE AND 0.111 INCHES MAXIMUM FIRST HOLE |
CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
3.253 INCHES MINIMUM FIRST HOLE AND 3.293 INCHES MAXIMUM FIRST HOLE |
ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
ANEE |
GRIP LENGTH |
2.990 INCHES MINIMUM AND 3.010 INCHES MAXIMUM |
SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
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