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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
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
MDCL MATERIAL DOCUMENT AND CLASSIFICATION FED66 FED STD ALL MATERIAL RESPONSES FASTENER
CQBC MINIMUM TENSILE STRENGTH 180000 POUNDS PER SQUARE INCH
CQHQ MINIMUM YIELD STRENGTH 155000 POUNDS PER SQUARE INCH
THSD THREAD SERIES DESIGNATOR UNRC
MATT MATERIAL PLASTIC POLYAMIDE LOCKING FEATURE
ASDB WIDTH ACROSS FLATS 0.140 INCHES MINIMUM AND 0.142 INCHES MAXIMUM
AAJD THREAD CLASS 3A
CSYM SURFACE FINISH 63.0 MICROINCHES FASTENER
AASA THREAD LENGTH 0.875 INCHES NOMINAL
CSYM SURFACE FINISH 63.0 MICROINCHES GRIP
AAUM LOCKING FEATURE PELLET THREADS
SFTT SURFACE TREATMENT CADMIUM FASTENER AND CHROMATE FASTENER
AASU HEAD HEIGHT 0.159 INCHES MINIMUM AND 0.160 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AHYM NOMINAL THREAD DIAMETER 0.164 INCHES
AASK HEAD STYLE FLAT CHAMFER
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
AASL HEAD DIAMETER 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE HEXAGON
CQFM HARDNESS RATING 39.0 ROCKWELL C MINIMUM FASTENER AND 45.0 ROCKWELL C MAXIMUM FASTENER
MATT MATERIAL STEEL FASTENER
CMLP THREAD QUANTITY PER INCH 32
AASB FASTENER LENGTH 1.000 INCHES NOMINAL

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