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 |
| 27878 |
EATON AEROSPACE LLC ED AND C DIV |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| CRSQ |
COUNTERSINK ANGLE |
100.0 DEGREES NOMINAL |
| AASB |
FASTENER LENGTH |
0.750 INCHES NOMINAL |
| MATT |
MATERIAL |
STEEL CORROSION RESISTING OVERALL |
| CXCY |
PART NAME ASSIGNED BY CONTROLLING AGENCY |
CAPTIVE SCREW |
| CSNG |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY |
1 |
| AASA |
THREAD LENGTH |
0.270 INCHES MINIMUM AND 0.310 INCHES MAXIMUM |
| AASL |
HEAD DIAMETER |
0.238 INCHES MINIMUM AND 0.279 INCHES MAXIMUM |
| ABQZ |
INTERNAL DRIVE STYLE |
CROSS RECESS TYPE II |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AGAV |
END ITEM IDENTIFICATION |
F-16ACFT |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| FEAT |
SPECIAL FEATURES |
BLACK OXIDE PER MIL-P-13924 CLASS 4 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| AAWC |
FIRST DIAMETER FROM HEAD |
0.095 INCHES NOMINAL |
| AAWH |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER |
0.719 INCHES MINIMUM AND 0.723 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.138 INCHES |
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