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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
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
THSD THREAD SERIES DESIGNATOR UNJF
ABQZ INTERNAL DRIVE STYLE TORQUE SET
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
CQBC MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
AASA THREAD LENGTH 0.313 INCHES MAXIMUM
AASL HEAD DIAMETER 0.322 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
AAJD THREAD CLASS 3A
CYAW SCREW MATERIAL DOCUMENT AND CLASSIFICATION AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT COUNTERSUNK
CRSQ COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
CYBL THREAD SURFACE FINISH 32.0 MICROINCHES
CYAV LOCKING FEATURE MATERIAL PLASTIC POLYCHLOROTRIFLUOROETHYLENE
AASB FASTENER LENGTH 0.313 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
CYAU SCREW MATERIAL TITANIUM ALLOY UNS R56400
CYAX LOCKING FEATURE MATERIAL DOCUMENT AND CLASSIFICATION AMS 3650 ASSN STD SINGLE MATERIAL RESPONSE
CYBK SHANK SURFACE FINISH 32.0 MICROINCHES
CMLP THREAD QUANTITY PER INCH 32
CYBH BEARING SURFACE OF HEAD SURFACE FINISH 32.0 MICROINCHES

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