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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
43689 HUNTINGTON INGALLS INCORPORATED DIV

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ASDB WIDTH ACROSS FLATS 0.312 INCHES NOMINAL
THSD THREAD SERIES DESIGNATOR UNRC
MATT MATERIAL PLASTIC POLYAMIDE LOCKING FEATURE
AAJD THREAD CLASS 3A
AASB FASTENER LENGTH 2.500 INCHES NOMINAL
CQBC MINIMUM TENSILE STRENGTH 130000 POUNDS PER SQUARE INCH
CQHQ MINIMUM YIELD STRENGTH 90000 POUNDS PER SQUARE INCH
AAJF THREAD DIRECTION RIGHT-HAND
AASU HEAD HEIGHT 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
AASK HEAD STYLE FLAT CHAMFER
AASL HEAD DIAMETER 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
AASA THREAD LENGTH 1.250 INCHES MINIMUM
ZZZT NONDEFINITIVE SPEC/STD DATA 2 TYPE
MATT MATERIAL NICKEL ALLOY K-500 FASTENER OR NICKEL ALLOY 502 FASTENER
AAUM LOCKING FEATURE PELLET THREADS OR PATCH THREADS OR STRIP THREADS
CMLP THREAD QUANTITY PER INCH 16
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-N-286 FED SPEC ALL MATERIAL RESPONSES FASTENER
CQFM HARDNESS RATING 24.0 ROCKWELL C MINIMUM FASTENER AND 35.0 ROCKWELL C MAXIMUM FASTENER
ABQZ INTERNAL DRIVE STYLE HEXAGON
AHYM NOMINAL THREAD DIAMETER 0.375 INCHES

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