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National Stock Number (NSN) Output Data

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.

Reference/Part Number

Part Number CAGE Status RNCC RNVC DAC RNAAC MSDS SADC
DC420094H01 18323 A 3 2 A ZZ

CAGE Information

Code Company
18323 NORTHROP GRUMMAN SYSTEMS CORPORATION

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ASDB WIDTH ACROSS FLATS 0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
AAWH DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.400 INCHES MINIMUM AND 0.460 INCHES MAXIMUM
MATT MATERIAL STEEL COMP 303 OVERALL
CQBC MINIMUM TENSILE STRENGTH 80000 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
CSNG EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
AASA THREAD LENGTH 0.400 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AHYM NOMINAL THREAD DIAMETER 0.164 INCHES
AASK HEAD STYLE FLAT CHAMFER
AASU HEAD HEIGHT 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM
AAWC FIRST DIAMETER FROM HEAD 0.120 INCHES NOMINAL
THSD THREAD SERIES DESIGNATOR UNC
ABQZ INTERNAL DRIVE STYLE HEXAGON
FEAT SPECIAL FEATURES HEAD MAY BE KNURLED AT MANUFACTERER OPTION
AASL HEAD DIAMETER 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 32
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AASB FASTENER LENGTH 1.000 INCHES NOMINAL

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