5310-01-566-0991 WASHER,FLAT Index 5310-01-566-1033 WASHER,SPRING TENSION

National Stock Number:
5310-01-566-1004

Federal Supply Class:
5310

National Item Identification Number:
015661004

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:
98180A16039428MCMASTER-CARR SUPPLY CO
MIL-001-4300UJB5FASCAN INTERNATIONAL, INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
COLORYELLOW OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.687 INCHES NOMINAL
OVERALL DIAMETER1.313 INCHES NOMINAL
MATERIALSTEEL OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTCHROMATE ZINC OVERALL
THICKNESS0.097 INCHES MINIMUM AND 0.121 INCHES MAXIMUM


Click here to Register for Free 30-day Trial