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 |
04348 |
LAWRENCE ENGINEERING AND SUPPLY INC |
17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
30902 |
F AND C SALES INC |
58998 |
EMHART TEKNOLOGIES LLC DBA FASTENER |
08938 |
AIR INDUSTRIES CO INC |
80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
73197 |
HI-SHEAR CORPORATION |
L4528 |
LISI AEROSPACE CANADA CORP |
53606 |
PLASTIC AND METAL PRODUCTS CORPORATI |
97928 |
HUCK INTL INC |
56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
07851 |
NOR-CAL SUPPLY CO.INC. |
80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
50568 |
APCOM INC |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES THREADS |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES THREADS |
CMLP |
THREAD QUANTITY PER INCH |
24 |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
AAUR |
GRIP DIAMETER |
0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM |
THSD |
THREAD SERIES DESIGNATOR |
UNJF |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD |
ZZZK |
SPECIFICATION/STANDARD DATA |
80205-NAS1135 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
AAJD |
THREAD CLASS |
3A |
AASB |
FASTENER LENGTH |
0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM |
AASL |
HEAD DIAMETER |
0.594 INCHES MINIMUM AND 0.615 INCHES MAXIMUM |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AASA |
THREAD LENGTH |
0.350 INCHES MINIMUM AND 0.400 INCHES MAXIMUM |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
NAS621,COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATT |
MATERIAL |
TITANIUM ALLOY UNS R54520 OVERALL |
ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
AASU |
HEAD HEIGHT |
0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM |
AHYM |
NOMINAL THREAD DIAMETER |
0.312 INCHES |
ANEE |
GRIP LENGTH |
0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM |
AASK |
HEAD STYLE |
PAN |
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