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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SCREW , CAP , SOCKET HEAD

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER. THE HEAD HAS AN INTERNAL SOCKET OR MULTIPLE SPLINE FOR USE WITH AN INSERTED DRIVER. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES ITEMS WITH BEVEL (CONICAL) HEADS. SEE BOLT, INTERNAL WRENCHING. EXCLUDES SCREW, SHOULDER; AND SCREW, MACHINE.

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 1.139 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 180000 POUNDS PER SQUARE INCH
CQHQ MINIMUM YIELD STRENGTH 155000 POUNDS PER SQUARE INCH
AASL HEAD DIAMETER 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
MATT MATERIAL PLASTIC POLYAMIDE LOCKING FEATURE
AAJD THREAD CLASS 3A
THSD THREAD SERIES DESIGNATOR UNRF
AHYM NOMINAL THREAD DIAMETER 0.250 INCHES
CMLP THREAD QUANTITY PER INCH 28
SFTT SURFACE TREATMENT CADMIUM FASTENER AND CHROMATE FASTENER
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT CHAMFER
CQFM HARDNESS RATING 38.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL
AASU HEAD HEIGHT 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
AASB FASTENER LENGTH 1.210 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
AAUM LOCKING FEATURE PELLET THREADS OR PATCH THREADS OR STRIP THREADS
ABQZ INTERNAL DRIVE STYLE HEXAGON
ASDB WIDTH ACROSS FLATS 0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
MATT MATERIAL STEEL FASTENER

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