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Part Number:
NSN:
NIIN:
Item Name:
SCREW , MACHINE

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN./1.5 MM) OR LARGER, DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), IN SIZES BELOW NO. 10 (0.190 IN./5 MM). NO. 10 AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; AND SCREW, ASSEMBLED WASHER. SEE ALSO, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; AND SCREW, CAP SOCKET HEAD.

CAGE Information

Code Company
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
THSD THREAD SERIES DESIGNATOR UNJC
CQFM HARDNESS RATING 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1218 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
AASL HEAD DIAMETER 0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
AASU HEAD HEIGHT 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE TORQUE-SET RIBBED
CQBC MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
CYBE SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE
AASB FASTENER LENGTH 1.093 INCHES MINIMUM AND 1.123 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
CYBA SCREW SURFACE TREATMENT CADMIUM AND CHROMATE
CYAU SCREW MATERIAL STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 4140 OR STEEL COMP 8735 OR STEEL COMP 6150
AHYM NOMINAL THREAD DIAMETER 0.112 INCHES
CYBL THREAD SURFACE FINISH 32.0 MICROINCHES
AASA THREAD LENGTH 0.232 INCHES NOMINAL
CYBK SHANK SURFACE FINISH 32.0 MICROINCHES
CYBH BEARING SURFACE OF HEAD SURFACE FINISH 32.0 MICROINCHES
AASK HEAD STYLE PAN
CMLP THREAD QUANTITY PER INCH 40

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