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 |
| 73197 |
HI-SHEAR CORPORATION |
| 50568 |
APCOM INC |
| 30889 |
ERIKS SOUTHWEST INC DBA MONTCLAIR EN |
| L4528 |
LISI AEROSPACE CANADA CORP |
| 56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
| 08938 |
AIR INDUSTRIES CO INC |
| 80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
| 82172 |
DURHAM AIRCRAFT SERVICE INC |
| 71563 |
COLLINS ENGINEERING CORP |
| 80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
| 30902 |
F AND C SALES INC |
| 07851 |
NOR-CAL SUPPLY CO.INC. |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
| AASB |
FASTENER LENGTH |
0.876 INCHES MINIMUM AND 0.906 INCHES MAXIMUM |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
0.746 INCHES MINIMUM FIRST HOLE AND 0.796 INCHES MAXIMUM FIRST HOLE |
| ABQZ |
INTERNAL DRIVE STYLE |
CROSS RECESS TYPE 1 |
| AASA |
THREAD LENGTH |
0.366 INCHES MINIMUM AND 0.416 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| ANEE |
GRIP LENGTH |
0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| ZZZK |
SPECIFICATION/STANDARD DATA |
80205-NAS1206 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| AAUR |
GRIP DIAMETER |
0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.106 INCHES MINIMUM FIRST HOLE AND 0.116 INCHES MAXIMUM FIRST HOLE |
| AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| MATT |
MATERIAL |
STEEL COMP 8735 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OVERALL OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OVERALL OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL |
| AASL |
HEAD DIAMETER |
0.704 INCHES MINIMUM AND 0.762 INCHES MAXIMUM |
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