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 |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES THREADS |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| CQBC |
MINIMUM TENSILE STRENGTH |
16000 POUNDS PER SQUARE INCH |
| CXCY |
PART NAME ASSIGNED BY CONTROLLING AGENCY |
SCREW, HEX HEAD, OFFSET CRUCIFORM-RIBBED RECESS, FULL THREAD, TITANIUM ALLOY 6AL-4V, 160,000 PSI TENSILE |
| AASA |
THREAD LENGTH |
0.718 INCHES NOMINAL |
| AASU |
HEAD HEIGHT |
0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
| MATT |
MATERIAL |
TITANIUM ALLOY UNS R56400 OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| ANEE |
GRIP LENGTH |
0.032 NOMINAL MILS |
| AAJD |
THREAD CLASS |
3A |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES HEAD |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASB |
FASTENER LENGTH |
0.734 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| CSYM |
SURFACE FINISH |
125.0 MICROINCHES OVERALL |
| AATB |
WIDTH BETWEEN FLATS |
0.305 NOMINAL MILS AND 0.314 NOMINAL CENTIMETERS |
| AAUR |
GRIP DIAMETER |
0.167 NOMINAL MILS AND 0.190 NOMINAL CENTIMETERS |
| AASK |
HEAD STYLE |
HEXAGON |
| ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
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