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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
AASB FASTENER LENGTH 0.750 INCHES NOMINAL
MATT MATERIAL STEEL CORROSION RESISTING OVERALL
THSD THREAD SERIES DESIGNATOR UNRC
AAJD THREAD CLASS 3A
AHYM NOMINAL THREAD DIAMETER 0.250 INCHES
AAJF THREAD DIRECTION RIGHT-HAND
AASA THREAD LENGTH 0.489 INCHES NOMINAL
AASK HEAD STYLE FLAT COUNTERSUNK
AASL HEAD DIAMETER 0.480 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE HEXAGON
ASDB WIDTH ACROSS FLATS 0.156 INCHES NOMINAL
CRSQ COUNTERSINK ANGLE 80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
CMLP THREAD QUANTITY PER INCH 20

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