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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
77820 AMPHENOL CORPORATION DBA AMPHENOL AE

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AASK HEAD STYLE KNURLED NO. 5
ABQZ INTERNAL DRIVE STYLE TORQUE
AASA THREAD LENGTH 0.110 INCHES MINIMUM
AASU HEAD HEIGHT 0.750 INCHES NOMINAL
AASL HEAD DIAMETER 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
CSNG EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 2
AHYM NOMINAL THREAD DIAMETER 0.112 INCHES
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASB FASTENER LENGTH 1.280 INCHES NOMINAL
AAWD SECOND DIAMETER FROM HEAD 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 40

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