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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
D1839 BUNDESAMT FUER WEHRTECHNIK UND BESCH

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AASL HEAD DIAMETER 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
AASA THREAD LENGTH 0.785 INCHES NOMINAL
CQHQ MINIMUM YIELD STRENGTH 140000 POUNDS PER SQUARE INCH
SFTT SURFACE TREATMENT CADMIUM OVERALL OR ZINC OVERALL
AAJD THREAD CLASS 3A
ZZZT NONDEFINITIVE SPEC/STD DATA 1 TYPE AND 11 STYLE
MATT MATERIAL STEEL COMP 4137 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 2340 OVERALL OR STEEL COMP 3135 OVERALL OR STEEL OVERALL
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT CHAMFER
THSD THREAD SERIES DESIGNATOR UNF
ASDB WIDTH ACROSS FLATS 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM
CQFM HARDNESS RATING 36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL
ABQZ INTERNAL DRIVE STYLE HEXAGON
CMLP THREAD QUANTITY PER INCH 32
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-624 FED SPEC 7TH MATERIAL RESPONSE OVERALL OR QQ-S-624 FED SPEC 4TH MATERIAL RESPONSE OVERALL OR QQ-S-624 FED SPEC 6TH MATERIAL RESPONSE OVERALL OR QQ-S-624 FED SPEC 3RD MATERIAL RESPONSE OVERALL OR QQ-S-624 FED SPEC 2ND MATERIAL RESPONSE OVERALL OR QQ-S-624 FED SPEC 5TH MATERIAL RESPONSE OVERALL OR QQ-S-624 FED SPEC 1ST MATERIAL RESPONSE OVERALL OR QQ-S-624,FS9440 FED SPEC 8TH MATERIAL RESPONSE OVERALL
AASU HEAD HEIGHT 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
AASB FASTENER LENGTH 1.000 INCHES NOMINAL

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