Mfg Part Number: C3874H4-9 | Alternate P/N: C3874H49 | Manufacturer: Alcoa Global Fasteners Inc |
NSN : 5305-00-487-5277 | Item Name : screw close toleran | CAGE Code : 06950 |
FSC : 5305 Screws |
MRC | Criteria | Characteristic |
---|---|---|
AAJD | THREAD CLASS | 3A |
AAJF | THREAD DIRECTION | RIGHT-HAND |
AASA | THREAD LENGTH | 0.352 INCHES MINIMUM AND 0.402 INCHES MAXIMUM |
AASB | FASTENER LENGTH | 0.924 INCHES MINIMUM AND 0.954 INCHES MAXIMUM |
AASK | HEAD STYLE | FLAT COUNTERSUNK |
AASL | HEAD DIAMETER | 0.412 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
AAUR | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
ANEE | GRIP LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
CMLP | THREAD QUANTITY PER INCH | 28 |
CQBC | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
CRSQ | COUNTERSINK ANGLE | 59.75 DEGREES MINIMUM AND 60.25 DEGREES MAXIMUM |
CSYM | SURFACE FINISH | 32.0 MICROINCHES GRIP |
CSYM | SURFACE FINISH | 32.0 MICROINCHES THREADS |
FEAT | SPECIAL FEATURES | BEARING SURFACE OF HEAD GROOVED TO 0.323 IN. MIN,0.325 IN. MAX DIA,0.050 IN. MIN,0.055 IN. MAX FROM TOP OF HEAD |
MATT | MATERIAL | STEEL COMP H11 OVERALL |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6485 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
SFTT | SURFACE TREATMENT | NICKEL OVERALL AND CADMIUM OVERALL |
STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL |
THSD | THREAD SERIES DESIGNATOR | UNF |
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