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 |
| 17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
| L4528 |
LISI AEROSPACE CANADA CORP |
| 92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| 98897 |
LOCKHEED MARTIN CORPORATION DBA LOCK |
| 73197 |
HI-SHEAR CORPORATION |
| 80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASA |
THREAD LENGTH |
0.291 INCHES MINIMUM AND 0.341 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.291 INCHES MINIMUM AND 0.341 INCHES MAXIMUM |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| AASB |
FASTENER LENGTH |
0.551 INCHES MINIMUM AND 0.581 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
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