5325-01-388-7436 GROMMET,NONMETALLIC Index 5330-01-388-7438 PACKING MATERIAL

National Stock Number:
5310-01-388-7437

Federal Supply Class:
5310

National Item Identification Number:
013887437

Description:
WASHER,FLAT

Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.


Manufacturer Information:
8909-922-02420722THE ENTWISTLE COMPANY LLC


Techincal Specification:
MATERIALSTEEL COMP 1035 OR
STEEL COMP 1037 OR
STEEL COMP 1038 OR
STEEL COMP 1039 OR
STEEL COMP 1040 OR
STEEL COMP 1042 OR
STEEL COMP 1043 OR
STEEL COMP 1044 OR
STEEL COMP 1045 OR
STEEL COMP 1046 OR
STEEL COMP 1049 OR
STEEL COMP 1050 OR
STEEL COMP 1053 OR
STEEL COMP 1054 OR
STEEL COMP 1055 OVERALL
SURFACE TREATMENTZINC OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.531 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.062 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.094 INCHES NOMINAL
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND
45.0 ROCKWELL C MAXIMUM


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