5306-01-545-8208 BOLT,MACHINE Index 5340-01-545-8210 PLUG,EXPANSION

National Stock Number:
5310-01-545-8209

Federal Supply Class:
5310

National Item Identification Number:
015458209

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:
90945A7610Y3H3FASTENAL COMPANY
90945A76139428MCMASTER-CARR SUPPLY CO
99003400Y3H3FASTENAL COMPANY
MC90945A7611PN61DILLON AERO, INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.255 INCHES NOMINAL
OVERALL DIAMETER0.468 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYFLAT WASHER
MATERIALSTEEL OVERALL
SPECIAL FEATURES1/4" SCREW SIZE;THICKNESS MIN-MAX 0.059-0.067
PERIPHERAL SHAPE STYLEROUND


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