4410-00-585-8155 SUPPORT,TUBE Index 5310-00-585-8157 WASHER,FLAT

National Stock Number:
5310-00-585-8156

Federal Supply Class:
5310

National Item Identification Number:
005858156

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:
587-513-1515300PC10B80064NAVAL SHIP SYSTEMS COMMAND
N758PC10B26505GROVE VALVE OPERATIONS
S3403426505GROVE VALVE OPERATIONS


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.438 INCHES NOMINAL
OVERALL DIAMETER1.249 INCHES MINIMUM AND 1.253 INCHES MAXIMUM
MATERIALPLASTIC POLYAMIDE (NYLON) OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM


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