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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
AASB FASTENER LENGTH 1.231 INCHES MINIMUM AND 1.269 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNJF
MATT MATERIAL STEEL COMP 4137 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8740 OVERALL
CQFM HARDNESS RATING 45.0 ROCKWELL C MINIMUM OVERALL AND 53.0 ROCKWELL C MAXIMUM OVERALL
AAJD THREAD CLASS 3A
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1081 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
AHYM NOMINAL THREAD DIAMETER 0.500 INCHES
ABQJ POINT STYLE FLAT
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE HEADLESS (SETSCREW)
AAUM LOCKING FEATURE PELLET THREADS OR PATCH THREADS OR STRIP THREADS
ABQZ INTERNAL DRIVE STYLE HEXAGON
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
ASDB WIDTH ACROSS FLATS 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 20

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