5305-01-535-2380 SCREW,CAP,HEXAGON HEAD Index 3110-01-535-2383 BEARING,ROLLER,TAPERED

National Stock Number:
5310-01-535-2382

Federal Supply Class:
5310

National Item Identification Number:
015352382

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:
17-2-0848-181337W1D1 NATICK SOLDIER CENTER
95630A25639428MCMASTER-CARR SUPPLY CO


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
COLORWHITE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.390 INCHES NOMINAL
OVERALL DIAMETER0.875 INCHES NOMINAL
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, POLYTETRAFLUOROETHYLENE
PERIPHERAL SHAPE STYLEROUND
SUPPLEMENTARY FEATURESHIGH HEAT AND CHEMICAL RESISTANCE AND THE LOWEST COEFFIVIENT OF ALL THERMOPLASTICS. THESE WASHERS HAVE EXCELLENT DIMENSIONAL STABILITY AND ARE SUITABLE FOR USE UO TO 500
THICKNESS0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM


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