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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SCREW , SHOULDER

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN.) (1.5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) NOMINAL DIAMETER. NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST BE DESIGNED FOR ANY TYPE OF INSERTED DRIVER, BUT MAY ALSO PROVIDE FOR EXTERNAL WRENCHING OF THE HEAD. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WHICH ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE SCREW, EXTERNALLY RELIEVED BODY. FOR ITEMS WITH A NO. 10 (0.190 IN.) (5 MM) OR LARGER THREAD DIAMETER WITHOUT AN INSERTED DRIVER HEAD, USE BOLT, SHOULDER. EXCLUDES BOLT, INTERNAL WRENCHING AND SCREW, CAP, SOCKET HEAD.

CAGE Information

Code Company
25472 BFGOODRICH CO THE

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
FEAT SPECIAL FEATURES TOP OF HEAD PAINTED OLIVE DRAB
CRSQ COUNTERSINK ANGLE 100.0 DEGREES NOMINAL
AATN SHOULDER DIAMETER 0.141 INCHES MINIMUM FIRST SHOULDER AND 0.143 INCHES MAXIMUM FIRST SHOULDER
ABQZ INTERNAL DRIVE STYLE SLOT
AASA THREAD LENGTH 0.133 INCHES MINIMUM AND 0.195 INCHES MAXIMUM
CWYB SHOULDER SHAPE ROUND FIRST SHOULDER
SFTT SURFACE TREATMENT PAINT HEAD
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT COUNTERSUNK
AASB FASTENER LENGTH 0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM
AATX SHOULDER LENGTH 0.125 INCHES MINIMUM FIRST SHOULDER AND 0.135 INCHES MAXIMUM FIRST SHOULDER
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
MATT MATERIAL STEEL COMP 4037 OVERALL
AASL HEAD DIAMETER 0.223 INCHES NOMINAL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CMLP THREAD QUANTITY PER INCH 32
AHYM NOMINAL THREAD DIAMETER 0.138 INCHES
CQFM HARDNESS RATING 33.0 ROCKWELL C NOMINAL OVERALL
SFTT SURFACE TREATMENT CADMIUM OVERALL

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