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 |
73197 |
HI-SHEAR CORPORATION |
92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
K5673 |
SPS TECHNOLOGIES LTD TJ BROOKS DIVIS |
80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
L4528 |
LISI AEROSPACE CANADA CORP |
97928 |
HUCK INTL INC |
76301 |
BOEING COMPANY THE DBA BOEING |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES THREADS |
CMLP |
THREAD QUANTITY PER INCH |
24 |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
CRSQ |
COUNTERSINK ANGLE |
100.0 DEGREES NOMINAL |
THSD |
THREAD SERIES DESIGNATOR |
UNJF |
FEAT |
SPECIAL FEATURES |
FURNISHED WITH ONE O RING |
AAJD |
THREAD CLASS |
3A |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AAUR |
GRIP DIAMETER |
0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM |
AASB |
FASTENER LENGTH |
1.125 INCHES MINIMUM AND 1.172 INCHES MAXIMUM |
ANEE |
GRIP LENGTH |
0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
AASA |
THREAD LENGTH |
0.615 INCHES MINIMUM AND 0.682 INCHES MAXIMUM |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
NAS 621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATT |
MATERIAL |
TITANIUM ALLOY OVERALL |
ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
AASL |
HEAD DIAMETER |
0.756 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
AASK |
HEAD STYLE |
FLAT COUNTERSUNK UNDERCUT |
AASU |
HEAD HEIGHT |
0.115 INCHES MINIMUM AND 0.117 INCHES MAXIMUM |
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