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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SCREW , CAP , HEXAGON HEAD

Definition:

AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION INTO HOLES IN ASSEMBLED PARTS, FOR MATING WITH A PREFORMED INTERNAL THREAD AND FOR TIGHTENING OR RELEASING BY TORQUING THE HEAD. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF THE SAME NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. THE THREAD LENGTH BEING THE CONTROLLED DIMENSION, THE GRIP LENGTH IS NOT SPECIFIED. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; AND SCREW, CAP, SOCKET HEAD.

CAGE Information

Code Company
98518 WALWORTH-ALOYCO

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CRTL CRITICALITY CODE JUSTIFICATION ZZZY
AATB WIDTH BETWEEN FLATS 0.544 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
MATT MATERIAL STEEL COMP 304 OVERALL
AASB FASTENER LENGTH 1.460 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
TEST TEST DATA DOCUMENT 81349-MIL-P-23199 SPECIFICATION
AAJF THREAD DIRECTION RIGHT-HAND
SPCL SPECIAL TEST FEATURES SPECIAL QUALITY CONTROL TESTING
ZZZY REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
CMLP THREAD QUANTITY PER INCH 16
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASK HEAD STYLE HEXAGON
AASA THREAD LENGTH 1.325 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.375 INCHES
MDCL MATERIAL DOCUMENT AND CLASSIFICATION ASTM A193 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
AASU HEAD HEIGHT 0.226 INCHES MINIMUM AND 0.268 INCHES MAXIMUM

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