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 |
1VSL7 |
HOUSTON PRECISION FASTENER L.L.C. |
K5673 |
SPS TECHNOLOGIES LTD TJ BROOKS DIVIS |
97928 |
HUCK INTL INC |
92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
73197 |
HI-SHEAR CORPORATION |
58998 |
EMHART TEKNOLOGIES LLC DBA FASTENER |
60516 |
WEST COAST AEROSPACE INC |
56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
76301 |
BOEING COMPANY THE DBA BOEING |
17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
L4528 |
LISI AEROSPACE CANADA CORP |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES THREADS |
AASB |
FASTENER LENGTH |
0.640 INCHES MINIMUM AND 0.687 INCHES MAXIMUM |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
ANEE |
GRIP LENGTH |
0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
CRSQ |
COUNTERSINK ANGLE |
100.0 DEGREES NOMINAL |
AGAV |
END ITEM IDENTIFICATION |
HARRIER AV-8B AIRCRAFT. |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 4967,COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
AASA |
THREAD LENGTH |
0.442 INCHES MINIMUM AND 0.509 INCHES MAXIMUM |
THSD |
THREAD SERIES DESIGNATOR |
UNJF |
AAJD |
THREAD CLASS |
3A |
AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
CMLP |
THREAD QUANTITY PER INCH |
28 |
AASU |
HEAD HEIGHT |
0.0713 INCHES MINIMUM AND 0.0733 INCHES MAXIMUM |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AASL |
HEAD DIAMETER |
0.5018 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM |
MATT |
MATERIAL |
TITANIUM ALLOY OVERALL |
ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
AASK |
HEAD STYLE |
FLAT COUNTERSUNK UNDERCUT |
AAUR |
GRIP DIAMETER |
0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
FEAT |
SPECIAL FEATURES |
CETYL ALCOHOL LUBRICATION,FURNISHED WITH O RING |
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