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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
CSYM SURFACE FINISH 32.0 MICROINCHES THREADS
CSYM SURFACE FINISH 32.0 MICROINCHES GRIP
THSD THREAD SERIES DESIGNATOR UNJC
CQHQ MINIMUM YIELD STRENGTH 85000 POUNDS PER SQUARE INCH
AASL HEAD DIAMETER 0.270 INCHES MINIMUM AND 0.332 INCHES MAXIMUM
MATT MATERIAL PLASTIC LOCKING FEATURE
AAUM LOCKING FEATURE PATCH THREADS
MDCL MATERIAL DOCUMENT AND CLASSIFICATION MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE
CSYM SURFACE FINISH 32.0 MICROINCHES BEARING SURFACE OF HEAD
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
CQBC MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
ABQZ INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
AASB FASTENER LENGTH 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AHYM NOMINAL THREAD DIAMETER 0.164 INCHES
AASK HEAD STYLE FLAT COUNTERSUNK
AASA THREAD LENGTH 0.151 INCHES MINIMUM AND 0.244 INCHES MAXIMUM
CRSQ COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
CQFM HARDNESS RATING 24.0 ROCKWELL C MINIMUM FASTENER AND 35.0 ROCKWELL C MAXIMUM FASTENER
SFTT SURFACE TREATMENT PASSIVATE FASTENER
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS5737 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATT MATERIAL IRON ALLOY 660 FASTENER
CMLP THREAD QUANTITY PER INCH 32

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