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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
18355 BOEING COMPANY THE DBA BOEING DIV DE

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
AASA THREAD LENGTH 0.377 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
CYAU SCREW MATERIAL STEEL COMP 8630 OR STEEL COMP 4037
AAJD THREAD CLASS 3A
CYAW SCREW MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-8695 MIL SPEC 2ND MATERIAL RESPONSE
ABQZ INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
AASL HEAD DIAMETER 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
CYBE SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES
CYBA SCREW SURFACE TREATMENT CADMIUM AND CHROMATE
AASU HEAD HEIGHT 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM
AASB FASTENER LENGTH 0.579 INCHES MINIMUM AND 0.626 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNF
CRTL CRITICALITY CODE JUSTIFICATION CQFM AND CQBC
CQFM HARDNESS RATING 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 125000 POUNDS PER SQUARE INCH
CMLP THREAD QUANTITY PER INCH 32
AASK HEAD STYLE PAN

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