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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
53711 NAVAL SEA SYSTEMS COMMAND

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CQHQ MINIMUM YIELD STRENGTH 153000 POUNDS PER SQUARE INCH
AAUM LOCKING FEATURE PATCH THREADS
MDCL MATERIAL DOCUMENT AND CLASSIFICATION MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE
THSD THREAD SERIES DESIGNATOR UNRC
CMLP THREAD QUANTITY PER INCH 8
MATT MATERIAL PLASTIC POLYAMIDE LOCKING FEATURE
AASB FASTENER LENGTH 5.500 INCHES NOMINAL
AAJD THREAD CLASS 3A
AASL HEAD DIAMETER 1.479 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
CQFM HARDNESS RATING 37.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT CHAMFER
MDCL MATERIAL DOCUMENT AND CLASSIFICATION ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
ASDB WIDTH ACROSS FLATS 0.750 INCHES NOMINAL
AASU HEAD HEIGHT 0.988 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
AASA THREAD LENGTH 2.500 INCHES MINIMUM AND 3.120 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 170000 POUNDS PER SQUARE INCH
MATT MATERIAL STEEL UNS K03104 FASTENER
ABQZ INTERNAL DRIVE STYLE HEXAGON
AHYM NOMINAL THREAD DIAMETER 1.000 INCHES

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