5305-01-125-1180 SCREW,MACHINE Index 5306-01-125-1182 CLAMP,LOOP

National Stock Number:
5305-01-125-1181

Federal Supply Class:
5305

National Item Identification Number:
011251181

Description:
SCREW,ASSEMBLED WASHER

Detail:
A SCREW, (as modified) to which has been assembled one or more nonremovable washer(s).


Manufacturer Information:
42554421450ARMY WEAPONS COMMAND ATTN AMSWE-REE-S


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.138 INCHES
THREAD QUANTITY PER INCH40
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.419 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
FASTENER LENGTH0.469 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
MATERIALSTEEL COMP 1050 OR
STEEL COMP 1566 PRIMARY WASHER
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD 2ND MATERIAL RESPONSE PRIMARY WASHER
SAE ASSN STD 1ST MATERIAL RESPONSE FASTENER
SURFACE TREATMENTCADMIUM OR
ZINC PRIMARY WASHER
CADMIUM OR
ZINC FASTENER
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND
50.0 ROCKWELL C MAXIMUM PRIMARY WASHER
HEAD STYLEDISHED HEXAGON
HEAD HEIGHT0.067 INCHES MINIMUM AND
0.080 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.245 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
WASHER QUANTITY1
PRIMARY WASHER STYLEFLAT EXTERNAL TEETH
PRIMARY WASHER OUTSIDE DIAMETER0.270 INCHES MINIMUM AND
0.280 INCHES MAXIMUM
PRIMARY WASHER MATERIAL THICKNESS0.016 INCHES NOMINAL
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE21450
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE425544


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