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 |
| 80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AAUR |
GRIP DIAMETER |
9.962 MILLIMETERS MINIMUM AND 9.987 MILLIMETERS MAXIMUM |
| CSYM |
SURFACE FINISH |
0.8 MICROMETERS THREADS |
| AHYM |
NOMINAL THREAD DIAMETER |
10.0 MILLIMETERS |
| CQWR |
EXTERNAL THREAD TOLERANCE CLASS |
4H6H |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| ANEE |
GRIP LENGTH |
9.8 MILLIMETERS MINIMUM AND 10.2 MILLIMETERS MAXIMUM |
| CRSQ |
COUNTERSINK ANGLE |
95.0 DEGREES MINIMUM AND 105.0 DEGREES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP 4340 OVERALL OR STEEL COMP 8740 OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASL |
HEAD DIAMETER |
18.8 MILLIMETERS MINIMUM AND 20.0 MILLIMETERS MAXIMUM |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| THSD |
THREAD SERIES DESIGNATOR |
MJ |
| AASA |
THREAD LENGTH |
14.0 MILLIMETERS MINIMUM AND 15.0 MILLIMETERS MAXIMUM |
| ZZZK |
SPECIFICATION/STANDARD DATA |
80205-NA0038 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| CQQR |
THREAD PITCH IN MILLIMETERS |
1.25 |
| AASB |
FASTENER LENGTH |
24.2 MILLIMETERS MINIMUM AND 24.8 MILLIMETERS MAXIMUM |
| CSYM |
SURFACE FINISH |
0.8 MICROMETERS BEARING SURFACE OF HEAD |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
| CSYM |
SURFACE FINISH |
0.8 MICROMETERS GRIP |
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