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 |
L4528 |
LISI AEROSPACE CANADA CORP |
97928 |
HUCK INTL INC |
73197 |
HI-SHEAR CORPORATION |
92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
76301 |
BOEING COMPANY THE DBA BOEING |
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 |
AASB |
FASTENER LENGTH |
3.985 INCHES MINIMUM AND 4.015 INCHES MAXIMUM |
AAJD |
THREAD CLASS |
3A |
AASL |
HEAD DIAMETER |
0.575 INCHES MINIMUM AND 0.635 INCHES MAXIMUM |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
ANEE |
GRIP LENGTH |
3.615 INCHES MINIMUM AND 3.635 INCHES MAXIMUM |
AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
AASA |
THREAD LENGTH |
0.350 INCHES MINIMUM AND 0.400 INCHES MAXIMUM |
MATT |
MATERIAL |
STEEL COMP XM-13 OVERALL |
AAUR |
GRIP DIAMETER |
0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM |
CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
2.862 INCHES MINIMUM FIRST HOLE AND 3.902 INCHES MAXIMUM FIRST HOLE |
ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.076 INCHES MINIMUM FIRST HOLE AND 0.081 INCHES MAXIMUM FIRST HOLE |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
AHYM |
NOMINAL THREAD DIAMETER |
0.312 INCHES |
SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
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