5310-01-343-7226 WASHER,FLAT Index 5330-01-343-7228 RETAINER,PACKING

National Stock Number:
5310-01-343-7227

Federal Supply Class:
5310

National Item Identification Number:
013437227

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:
517-5486333 ITEM 1253711NAVAL SEA SYSTEMS COMMAND
5486333 ITEM 1253711NAVAL SEA SYSTEMS COMMAND
5486333-0012A96169ELECTRIC BOAT CORPORATION


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