Part Number
Definition:
A SCREW, MACHINE OR SCREW, CAP, SOCKET HEAD WHOSE UNTHREADED PORTION IS OF SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001 IN.) (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS (1.000 IN.) (25 MM) OR LESS IN DIAMETER. ITEMS OVER (1.000 IN.) (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN THOUSANDTHS (0.0015 IN.) (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001 IN.) (0.025 MM) BELOW THE MINIMUM SHANK DIAMETER, BUT NOT BELOW THE MINIMUM MAJOR DIAMETER FOR APPLICABLE CLASS OF FIT, AS SHOWN IN THE SCREW THREAD STANDARDS, FED STD H28 AND/OR OTHER NATIONALLY RECOGNIZED STANDARDS. THE HEAD IS DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER. IT IS NOT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS.
CAGE Information
Code | Company |
---|---|
80205 | NATIONAL AEROSPACE STANDARDS COMMITT |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
CSYM | SURFACE FINISH | 32.0 MICROINCHES THREADS |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE FASTENER OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
CSYM | SURFACE FINISH | 32.0 MICROINCHES GRIP |
ANEE | GRIP LENGTH | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
MATT | MATERIAL | PLASTIC LOCKING FEATURE |
HUES | COLOR | GREEN THREADS |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE |
THSD | THREAD SERIES DESIGNATOR | UNJF |
CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
AAJD | THREAD CLASS | 3A |
ZZZK | SPECIFICATION/STANDARD DATA | 80205-NAS7204 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
AASL | HEAD DIAMETER | 0.456 INCHES MINIMUM AND 0.508 INCHES MAXIMUM |
CMLP | THREAD QUANTITY PER INCH | 28 |
ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
SFTT | SURFACE TREATMENT | CADMIUM FASTENER AND CHROMATE FASTENER |
AAJF | THREAD DIRECTION | RIGHT-HAND |
AASB | FASTENER LENGTH | 0.722 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
AASK | HEAD STYLE | FLAT COUNTERSUNK |
CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
CSYM | SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
AAUM | LOCKING FEATURE | PELLET THREADS OR PATCH THREADS OR STRIP THREADS |
AAUR | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
MATT | MATERIAL | IRON ALLOY 660 FASTENER |
AASA | THREAD LENGTH | 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM |