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Part Number

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
CYBE SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
CYAW SCREW MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OR AN-S-9 MIL STD SINGLE MATERIAL RESPONSE
CQBC MINIMUM TENSILE STRENGTH 125 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
AASB FASTENER LENGTH 0.641 INCHES MINIMUM AND 0.688 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE ROUND
THSD THREAD SERIES DESIGNATOR UNF
AASL HEAD DIAMETER 0.361 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
CYAU SCREW MATERIAL STEEL COMP 8630
CQFM HARDNESS RATING 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
AASA THREAD LENGTH 0.376 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
CYBA SCREW SURFACE TREATMENT CADMIUM
CMLP THREAD QUANTITY PER INCH 32
AASU HEAD HEIGHT 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM

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