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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SETSCREW

Definition:

AN EXTERNALLY THREADED DEVICE WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER WITH OR WITHOUT A HEAD AND HAVING A CUP, CONE, OR OTHER TYPE OF MACHINED POINT DESIGNED TO PREVENT OR RESTRICT RELATIVE MOVEMENT OF PARTS AND DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS.

CAGE Information

Code Company
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AASA THREAD LENGTH 0.250 INCHES MAXIMUM
ABQJ POINT STYLE CUP
AAJD THREAD CLASS 3A
CQFM HARDNESS RATING 33.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL
AASB FASTENER LENGTH 0.250 INCHES NOMINAL
AAJF THREAD DIRECTION RIGHT-HAND
AHYM NOMINAL THREAD DIAMETER 0.164 INCHES
MDCL MATERIAL DOCUMENT AND CLASSIFICATION 66 FED STD ALL MATERIAL RESPONSES OVERALL
AASK HEAD STYLE HEADLESS (SETSCREW)
AAUM LOCKING FEATURE PELLET THREADS OR PATCH THREADS OR STRIP THREADS
THSD THREAD SERIES DESIGNATOR UNC
ABQZ INTERNAL DRIVE STYLE HEXAGON
MATT MATERIAL STEEL COMP 8630 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 4137 OVERALL OR STEEL COMP 8740 OVERALL
ASDB WIDTH ACROSS FLATS 0.078 INCHES MINIMUM AND 0.079 INCHES MAXIMUM
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
CMLP THREAD QUANTITY PER INCH 32

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