5955-01-030-8417 CRYSTAL UNIT,QUARTZ Index 5310-01-030-8419 WASHER,FLAT

National Stock Number:
5310-01-030-8418

Federal Supply Class:
5310

National Item Identification Number:
010308418

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:
993336-782577RAYTHEON COMPANY
D7917850HDW7HUCK INTERNATIONAL, INC.
D79178517446HUCK INTERNATIONAL, INC
D79178573197HI-SHEAR CORPORATION
D79178597928HUCK INTL INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.222 INCHES MINIMUM AND 0.226 INCHES MAXIMUM
OVERALL DIAMETER0.340 INCHES MINIMUM AND 0.346 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059,HARD FINISH MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 301 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.019 INCHES MINIMUM AND 0.025 INCHES MAXIMUM


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