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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
CQHQ MINIMUM YIELD STRENGTH 30000 POUNDS PER SQUARE INCH
CMLP THREAD QUANTITY PER INCH 24
AASA THREAD LENGTH 1.125 INCHES MINIMUM
AASU HEAD HEIGHT 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
AASB FASTENER LENGTH 1.460 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
CQBC MINIMUM TENSILE STRENGTH 80000 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
THSD THREAD SERIES DESIGNATOR UNRF
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT CHAMFER
CQFM HARDNESS RATING 80.0 ROCKWELL B MINIMUM OVERALL
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
ABQZ INTERNAL DRIVE STYLE HEXAGON
MATT MATERIAL STEEL UNS K03104 OVERALL
AASL HEAD DIAMETER 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM
ASDB WIDTH ACROSS FLATS 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.312 INCHES
MDCL MATERIAL DOCUMENT AND CLASSIFICATION FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SFTT SURFACE TREATMENT CADMIUM OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TYPE 1 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

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