5985-01-618-0248 ANTENNA SUPPORT GROUP 5998-01-618-9726 CIRCUIT CARD ASSEMBLY

National Stock Number:
5310-01-618-6426

Federal Supply Class:
5310

National Item Identification Number:
016186426

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:
94768A10739428MCMASTER-CARR SUPPLY CO


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING70.0 ROCKWELL B MINIMUM
HOLE DIAMETER13.0 MILLIMETERS NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
OVERALL DIAMETER26.0 MILLIMETERS NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER,EXTRA-THICK,METRIC
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESSPECIFIC MATL IAW 18-8 STAINLESS STEEL
THICKNESS4.5 MILLIMETERS MINIMUM AND 5.4 MILLIMETERS MAXIMUM


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