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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
D9182 BOSCH REXROTH GMBH LOHMANN STOLTERFO

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
AASK HEAD STYLE KNURLED NO. 1
AASU HEAD HEIGHT 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE SLOT
MATT MATERIAL STEEL COMP 303 OVERALL
FEAT SPECIAL FEATURES CONE POINT
CSNG EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
AAWH DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AAWC FIRST DIAMETER FROM HEAD 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNF
AAJD THREAD CLASS 2A
AASB FASTENER LENGTH 0.938 INCHES NOMINAL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
AASL HEAD DIAMETER 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 32
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AASA THREAD LENGTH 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM

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