Part Number
Part Number:
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.
CAGE Information
| Code |
Company |
| 80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASB |
FASTENER LENGTH |
0.511 INCHES MINIMUM AND 0.541 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.289 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNJC |
| AASU |
HEAD HEIGHT |
0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.260 INCHES NOMINAL |
| AASL |
HEAD DIAMETER |
0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| MATT |
MATERIAL |
TITANIUM ALLOY UNS R56400 OVERALL |
| AAJD |
THREAD CLASS |
3A |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| ABQJ |
POINT STYLE |
FLAT |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AHYM |
NOMINAL THREAD DIAMETER |
0.164 INCHES |
| SFTT |
SURFACE TREATMENT |
ALUMINUM OVERALL |
| AAVA |
POINT DIAMETER |
0.162 INCHES MINIMUM AND 0.163 INCHES MAXIMUM |
| ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| ANEE |
GRIP LENGTH |
0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
PAN |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
NAS4006 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
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