5310-00-947-4188 WASHER,FLAT Index 5331-00-947-4191 O-RING

National Stock Number:
5310-00-947-4189

Federal Supply Class:
5310

National Item Identification Number:
009474189

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:
S6165-2101331633ALINABAL HOLDINGS CORPORATION
S6165-2101355214BETA SHIM CO.
S6165-2101378286SIKORSKY AIRCRAFT CORPORATION
S6165-21013D1081AIRBUS DEUTSCHLAND GMBH -WERK BREMEN-


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.234 INCHES NOMINAL
OVERALL DIAMETER0.412 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 410 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH100.0 MICROINCHES OUTER
SURFACE FINISH100.0 MICROINCHES BOTTOM
SURFACE FINISH100.0 MICROINCHES INNER
SURFACE FINISH100.0 MICROINCHES TOP
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.062 INCHES NOMINAL


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