NIIN Output Data
NIIN:
NSN:
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 |
16941 |
LONG-LOK FASTENERS CORPORATION |
80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
73197 |
HI-SHEAR CORPORATION |
17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
97928 |
HUCK INTL INC |
56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
82577 |
RAYTHEON COMPANY DBA RAYTHEON |
80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
L4528 |
LISI AEROSPACE CANADA CORP |
06950 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
07851 |
NOR-CAL SUPPLY CO.INC. |
93907 |
TEXTRON FASTENING SYSTEMS DBA DECORA |
06725 |
SPS TECHNOLOGIES LLC DBA AIR INDUSTR |
30902 |
F AND C SALES INC |
26304 |
TORKON FASTENER CORP |
58998 |
EMHART TEKNOLOGIES LLC DBA FASTENER |
53606 |
PLASTIC AND METAL PRODUCTS CORPORATI |
08938 |
AIR INDUSTRIES CO 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 |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
AASL |
HEAD DIAMETER |
0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
ZZZK |
SPECIFICATION/STANDARD DATA |
80205-NAS1184 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
THSD |
THREAD SERIES DESIGNATOR |
UNJF |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD |
CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
AAJD |
THREAD CLASS |
3A |
AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
CMLP |
THREAD QUANTITY PER INCH |
28 |
STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
AASB |
FASTENER LENGTH |
0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AASK |
HEAD STYLE |
FLAT CHAMFER |
CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
ANEE |
GRIP LENGTH |
0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
AAUR |
GRIP DIAMETER |
0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
MATT |
MATERIAL |
STEEL COMP 4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL |
SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
AASU |
HEAD HEIGHT |
0.133 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
AASA |
THREAD LENGTH |
0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
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