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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
10001 NAVAIR AND NAVSEA MANAGED ORIGINAL D

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
SFTT SURFACE TREATMENT ZINC OVERALL
SFTT SURFACE TREATMENT ZINC OVERALL
CQHQ MINIMUM YIELD STRENGTH 140000 POUNDS PER SQUARE INCH
AASB FASTENER LENGTH 0.750 INCHES NOMINAL
AASL HEAD DIAMETER 0.429 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
AASU HEAD HEIGHT 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
ASDB WIDTH ACROSS FLATS 0.218 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 18
AAJD THREAD CLASS 3A
ZZZT NONDEFINITIVE SPEC/STD DATA 1 TYPE AND 11 STYLE
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT CHAMFER
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-624 FED SPEC ALL MATERIAL RESPONSES 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 0.750 INCHES NOMINAL
ABQZ INTERNAL DRIVE STYLE HEXAGON
AHYM NOMINAL THREAD DIAMETER 0.312 INCHES
MATT MATERIAL STEEL COMP 8637 OVERALL OR STEEL COMP 4135 OVERALL OR STEEL COMP 4137 OVERALL OR STEEL COMP 8640 OVERALL

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