Mfg Part Number: 1 4 20X3 4
Alternate P/N: 1420X34
NSN : 5305-00-012-1887
NIIN : 000121887
CAGE Code : 35211
Manufacturer: Lauson Division
Item Name : Screw Cap Hexagon H Screw Cap Hexagon H
FSC : 5305 Screws
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MRC | Criteria | Characteristic |
---|---|---|
AAJD | THREAD CLASS | 2A |
AAJF | THREAD DIRECTION | RIGHT-HAND |
AASA | THREAD LENGTH | 0.750 INCHES MAXIMUM |
AASB | FASTENER LENGTH | 0.750 INCHES NOMINAL |
AASK | HEAD STYLE | HEXAGON |
AASU | HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM |
AATB | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
CMLP | THREAD QUANTITY PER INCH | 20 |
CQBC | MINIMUM TENSILE STRENGTH | 74000 POUNDS PER SQUARE INCH |
CQFM | HARDNESS RATING | 80.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL |
CSYM | SURFACE FINISH | 125.0 MICROINCHES BEARING SURFACE OF HEAD |
CSYM | SURFACE FINISH | 63.0 MICROINCHES THREADS |
MATT | MATERIAL | STEEL OVERALL |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
SFTT | SURFACE TREATMENT | CADMIUM OR ZINC OVERALL |
STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
THSD | THREAD SERIES DESIGNATOR | UNC |
ZZZT | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 10P STYLE AND 2 GRADE |
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