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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
AASA THREAD LENGTH 1.375 INCHES MINIMUM
AASL HEAD DIAMETER 0.642 INCHES MINIMUM AND 0.656 INCHES MAXIMUM
ASDB WIDTH ACROSS FLATS 0.325 INCHES MINIMUM AND 0.379 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 160000 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 IRON ALLOY 660 OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL AND AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
ABQZ INTERNAL DRIVE STYLE HEXAGON
AHYM NOMINAL THREAD DIAMETER 0.438 INCHES
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CMLP THREAD QUANTITY PER INCH 20
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1531 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
AASB FASTENER LENGTH 1.440 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AASU HEAD HEIGHT 0.430 INCHES MINIMUM AND 0.437 INCHES MAXIMUM

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