5310-01-201-3799 NUT,PLAIN,HEXAGON Index 5310-01-201-3801 WASHER,FLAT

National Stock Number:
5310-01-201-3800

Federal Supply Class:
5310

National Item Identification Number:
012013800

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:
732027-373030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING45.0 ROCKWELL B MINIMUM
HOLE DIAMETER0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4027 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 6061 OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER1.820 INCHES MINIMUM AND 1.880 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONHS334 TYPE 1 FSCM 73030 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
THICKNESS0.076 INCHES MINIMUM AND 0.084 INCHES MAXIMUM


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