5310-01-138-4229 WASHER,FLAT Index 5310-01-138-4231 WASHER,FLAT

National Stock Number:
5310-01-138-4230

Federal Supply Class:
5310

National Item Identification Number:
011384230

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:
16-900-327192DRS NAVAL POWER SYSTEMS INC
6977ED12 PIECE 427192DRS NAVAL POWER SYSTEMS INC
6977ED12 PIECE 527192DRS NAVAL POWER SYSTEMS INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.203 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
OVERALL DIAMETER0.500 INCHES MINIMUM AND 0.532 INCHES MAXIMUM
MATERIALRUBBER SYNTHETIC OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.046 INCHES MINIMUM AND 0.078 INCHES MAXIMUM


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