NIIN Output Data
NIIN:
NSN:
Item Name:
SCREW , EXTERNALLY RELIEVED BODY
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES UNDERCUT FOR THREAD RELIEF). IT IS NO. 0 (0.060 IN.) (1.5 MM) OR LARGER, AND IS DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE ALSO BOLT, EXTERNALLY RELIEVED BODY AND BOLT, INTERNAL WRENCHING.
Reference/Part Number
CAGE Information
| Code |
Company |
| 19133 |
MCDONNELL DOUGLAS CORP MCDONNELL DOU |
| 29372 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| AASL |
HEAD DIAMETER |
0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP 302 OVERALL OR STEEL COMP 304L OVERALL OR STEEL COMP 305 OVERALL OR STEEL COMP 316L OVERALL OR STEEL COMP 304 OVERALL OR STEEL COMP 309 OVERALL OR STEEL COMP 310 OVERALL OR STEEL COMP 316 OVERALL OR STEEL COMP 317 OVERALL OR STEEL COMP 321 OVERALL OR STEEL COMP 347 OVERALL |
| AASB |
FASTENER LENGTH |
0.668 INCHES MINIMUM AND 0.708 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.105 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| CSNG |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY |
1 |
| AAWD |
SECOND DIAMETER FROM HEAD |
0.139 INCHES MINIMUM AND 0.163 INCHES MAXIMUM |
| ABQZ |
INTERNAL DRIVE STYLE |
CROSS RECESS TYPE 1 |
| AAWC |
FIRST DIAMETER FROM HEAD |
0.244 INCHES MINIMUM AND 0.249 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASK |
HEAD STYLE |
FLAT CHAMFER |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AAWH |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER |
0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| AAWJ |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER |
0.301 INCHES MINIMUM AND 0.371 INCHES MAXIMUM |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| AASA |
THREAD LENGTH |
0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
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