Part Number
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 |
---|---|
53711 | NAVAL SEA SYSTEMS COMMAND |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
CQHQ | MINIMUM YIELD STRENGTH | 155000 POUNDS PER SQUARE INCH |
MATT | MATERIAL | STEEL COMP 4340 OVERALL |
AASA | THREAD LENGTH | 1.375 INCHES NOMINAL |
AASL | HEAD DIAMETER | 1.107 INCHES MINIMUM AND 1.125 INCHES MAXIMUM |
ASDB | WIDTH ACROSS FLATS | 0.625 INCHES MINIMUM AND 0.631 INCHES MAXIMUM |
AASU | HEAD HEIGHT | 0.750 INCHES NOMINAL |
CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
AASB | FASTENER LENGTH | 2.625 INCHES NOMINAL |
AAJF | THREAD DIRECTION | RIGHT-HAND |
AASK | HEAD STYLE | FLAT CHAMFER |
AATX | SHOULDER LENGTH | 1.250 INCHES NOMINAL FIRST SHOULDER |
THSD | THREAD SERIES DESIGNATOR | UNC |
CQBC | MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH |
AAJD | THREAD CLASS | 2A |
AHYM | NOMINAL THREAD DIAMETER | 0.750 INCHES |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
AATN | SHOULDER DIAMETER | 0.758 INCHES MINIMUM FIRST SHOULDER AND 0.760 INCHES MAXIMUM FIRST SHOULDER |
ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
CMLP | THREAD QUANTITY PER INCH | 10 |