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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
AASL HEAD DIAMETER 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 80000 POUNDS PER SQUARE INCH
MATT MATERIAL PLASTIC POLYAMIDE LOCKING FEATURE
AAJD THREAD CLASS 3A
AHYM NOMINAL THREAD DIAMETER 0.250 INCHES
CMLP THREAD QUANTITY PER INCH 28
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT CHAMFER
MATT MATERIAL STEEL COMP 305 FASTENER OR STEEL COMP 302 FASTENER OR STEEL COMP 304 FASTENER OR STEEL COMP 316 FASTENER OR STEEL COMP 384 FASTENER OR STEEL COMP XM-7 FASTENER
AASU HEAD HEIGHT 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
SFTT SURFACE TREATMENT CERAMIC FASTENER
THSD THREAD SERIES DESIGNATOR UNF
AASA THREAD LENGTH 0.664 INCHES MINIMUM AND 0.765 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE HEXAGON
ASDB WIDTH ACROSS FLATS 0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-C-81751 TY 1 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER
AASB FASTENER LENGTH 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM
AAUM LOCKING FEATURE PELLET THREADS OR STRIP THREADS OR PATCH THREADS

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