1650-01-045-8900 END CAP Index 5310-01-045-8902 WASHER,RECESSED

National Stock Number:
5310-01-045-8901

Federal Supply Class:
5310

National Item Identification Number:
010458901

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:
4M116-0300376301THE BOEING COMPANY
4M116-0300381205THE BOEING COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
OVERALL DIAMETER0.550 INCHES MINIMUM AND 0.570 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONZZ-R-765,CLASS 3B,GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSILICON ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.027 INCHES MINIMUM AND 0.039 INCHES MAXIMUM


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