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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
AASB FASTENER LENGTH 1.710 INCHES MINIMUM AND 1.750 INCHES MAXIMUM
AASB FASTENER LENGTH 1.710 INCHES MINIMUM AND 1.750 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 180000 POUNDS PER SQUARE INCH
AASU HEAD HEIGHT 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
CQHQ MINIMUM YIELD STRENGTH 130000 POUNDS PER SQUARE INCH
CMLP THREAD QUANTITY PER INCH 18
AAJD THREAD CLASS 3A
AAUB HOLE DIAMETER 0.061 INCHES NOMINAL
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT CHAMFER
MATT MATERIAL STEEL OVERALL
THSD THREAD SERIES DESIGNATOR UNC
CQFM HARDNESS RATING 36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL
AASA THREAD LENGTH 1.090 INCHES MINIMUM AND 1.400 INCHES MAXIMUM
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
ABQZ INTERNAL DRIVE STYLE HEXAGON
AASL HEAD DIAMETER 0.457 INCHES MINIMUM AND 0.468 INCHES MAXIMUM
BQDM HOLE TYPE DRILLED
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
ASDB WIDTH ACROSS FLATS 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM
ASXK HOLE QUANTITY 6
AHYM NOMINAL THREAD DIAMETER 0.312 INCHES
CRHC HOLE CONFIGURATION STYLE ROUND INTERNAL HEXAGON
MDCL MATERIAL DOCUMENT AND CLASSIFICATION 66 FED STD SINGLE MATERIAL RESPONSE OVERALL

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