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 |
19207 |
U S ARMY TANK AUTOMOTIVE COMMAND AMS |
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
CMLP |
THREAD QUANTITY PER INCH |
24 |
AATX |
SHOULDER LENGTH |
0.578 INCHES MINIMUM FIRST SHOULDER AND 0.584 INCHES MAXIMUM FIRST SHOULDER |
AASU |
HEAD HEIGHT |
0.062 INCHES MINIMUM AND 0.072 INCHES MAXIMUM |
CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
AASL |
HEAD DIAMETER |
0.500 INCHES NOMINAL |
ABQZ |
INTERNAL DRIVE STYLE |
CROSS RECESS TYPE 1 |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AASK |
HEAD STYLE |
FLAT CHAMFER |
FEAT |
SPECIAL FEATURES |
0.359 IN. DIA BY 0.031 IN. DEEP UNDERCUT BENEATH HEAD |
AASB |
FASTENER LENGTH |
0.896 INCHES MINIMUM AND 0.906 INCHES MAXIMUM |
THSD |
THREAD SERIES DESIGNATOR |
UNF |
AASA |
THREAD LENGTH |
0.235 INCHES MINIMUM |
AAJD |
THREAD CLASS |
2A |
AATN |
SHOULDER DIAMETER |
0.376 INCHES MINIMUM FIRST SHOULDER AND 0.377 INCHES MAXIMUM FIRST SHOULDER |
AHYM |
NOMINAL THREAD DIAMETER |
0.312 INCHES |
SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
MATT |
MATERIAL |
STEEL COMP 420 OVERALL |
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