4730-01-210-6056 NUT,UNION Index 5330-01-210-6058 SEAL,PLAIN ENCASED

National Stock Number:
5310-01-210-6057

Federal Supply Class:
5310

National Item Identification Number:
012106057

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:
2069155 PIECE 580064NAVAL SHIP SYSTEMS COMMAND
2069155 PIECE 5CP03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2620-607X2 PIECE 596169ELECTRIC BOAT CORPORATION
2620-607X2 PIECE 5CP03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D


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