5310-01-209-7265 WASHER,FLAT Index 5310-01-209-7267 WASHER,FLAT

National Stock Number:
5310-01-209-7266

Federal Supply Class:
5310

National Item Identification Number:
012097266

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:
BACW10AT1081205THE BOEING COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.688 INCHES MINIMUM AND 0.698 INCHES MAXIMUM
OVERALL DIAMETER1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6358 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6359 ASSN STD 3RD MATERIAL RESPONSE OR MIL-S-18729 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 4340 OR STEEL COMP 4130 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THICKNESS0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM


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