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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
THSD THREAD SERIES DESIGNATOR UNRC
AASL HEAD DIAMETER 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
MATT MATERIAL PLASTIC POLYAMIDE LOCKING FEATURE
AAJD THREAD CLASS 3A
AHYM NOMINAL THREAD DIAMETER 0.250 INCHES
AASB FASTENER LENGTH 0.250 INCHES NOMINAL
AAJF THREAD DIRECTION RIGHT-HAND
AASU HEAD HEIGHT 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
MATT MATERIAL STEEL OVERALL
AAUM LOCKING FEATURE PELLET THREADS OR PATCH THREADS OR STRIP THREADS
MDCL MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-122 TII GR574 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
ABQZ INTERNAL DRIVE STYLE HEXAGON
ASDB WIDTH ACROSS FLATS 0.188 INCHES NOMINAL
CMLP THREAD QUANTITY PER INCH 20
AASA THREAD LENGTH 0.250 INCHES NOMINAL
AASK HEAD STYLE FLAT FILLISTER

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