Part Number
Part Number:
NSN:
NIIN:
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.
CAGE Information
| Code |
Company |
| 15280 |
NORTHROP GRUMMAN SYSTEMS CORPORATION |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASK |
HEAD STYLE |
KNURLED NO. 4 |
| ABQZ |
INTERNAL DRIVE STYLE |
SLOT |
| MATT |
MATERIAL |
STEEL CORROSION RESISTING OVERALL |
| AASB |
FASTENER LENGTH |
1.187 INCHES NOMINAL |
| AASL |
HEAD DIAMETER |
0.625 INCHES NOMINAL |
| AASA |
THREAD LENGTH |
0.312 INCHES MINIMUM |
| CSNG |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY |
1 |
| AASU |
HEAD HEIGHT |
0.407 INCHES NOMINAL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AAWH |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER |
0.812 INCHES NOMINAL |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
66,COMP 18-8 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
| FEAT |
SPECIAL FEATURES |
CONE POINT 60 DEG OF ANGLE |
| AAWC |
FIRST DIAMETER FROM HEAD |
0.175 INCHES NOMINAL |
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