1680-01-510-6747 WASHER,FLAT,AIRCRAF Index 4920-01-510-6748 GAUGE,TEMPERATURE,A

National Stock Number:
5310-01-510-6747

Federal Supply Class:
5310

National Item Identification Number:
015106747

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:
4M36-0215076301THE BOEING COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM
OVERALL DIAMETER0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCYINAVY) WASHER, FLAT, METAL, SPECIAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 ANNEALED FED SPEC 2ND MATERIAL RESPONSE OR MIL-S-8506, TYPE 1, ANNEALED MIL SPEC 3RD MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 302 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.016 INCHES NOMINAL


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