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Part Number

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

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER. THE HEAD HAS AN INTERNAL SOCKET OR MULTIPLE SPLINE FOR USE WITH AN INSERTED DRIVER. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES ITEMS WITH BEVEL (CONICAL) HEADS. SEE BOLT, INTERNAL WRENCHING. EXCLUDES SCREW, SHOULDER; AND SCREW, MACHINE.

CAGE Information

Code Company
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
CQBC MINIMUM TENSILE STRENGTH 180000 POUNDS PER SQUARE INCH
CQHQ MINIMUM YIELD STRENGTH 155000 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
THSD THREAD SERIES DESIGNATOR UNRF
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT CHAMFER
MATT MATERIAL STEEL OVERALL
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
AASL HEAD DIAMETER 0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
AASA THREAD LENGTH 0.533 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
ASDB WIDTH ACROSS FLATS 0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE HEXAGON
CQFM HARDNESS RATING 36.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL
CMLP THREAD QUANTITY PER INCH 32
AASU HEAD HEIGHT 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
AASB FASTENER LENGTH 0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM

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