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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
AASU HEAD HEIGHT 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
AASL HEAD DIAMETER 1.107 INCHES MINIMUM AND 1.125 INCHES MAXIMUM
ASDB WIDTH ACROSS FLATS 0.625 INCHES MINIMUM AND 0.631 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
CQHQ MINIMUM YIELD STRENGTH 130000 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
AASA THREAD LENGTH 1.969 INCHES MINIMUM AND 2.031 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT CHAMFER
MATT MATERIAL STEEL OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
AASB FASTENER LENGTH 3.469 INCHES MINIMUM AND 3.531 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNC
AHYM NOMINAL THREAD DIAMETER 0.750 INCHES
CQFM HARDNESS RATING 36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL
ABQZ INTERNAL DRIVE STYLE HEXAGON
CMLP THREAD QUANTITY PER INCH 10
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL

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