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 |
| 50568 |
APCOM INC |
| 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 |
| 80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
| 07851 |
NOR-CAL SUPPLY CO.INC. |
| 17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES THREADS |
| ANEE |
GRIP LENGTH |
0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| MATT |
MATERIAL |
STEEL COMP E4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 6150 OVERALL |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| AASA |
THREAD LENGTH |
0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAUR |
GRIP DIAMETER |
0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| AASL |
HEAD DIAMETER |
0.361 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| ZZZK |
SPECIFICATION/STANDARD DATA |
80205-NAS1143 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| AASB |
FASTENER LENGTH |
0.323 INCHES MINIMUM AND 0.353 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| AASU |
HEAD HEIGHT |
0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
PAN |
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