5310-01-512-9899 WASHER,LOCK Index 5330-01-512-9901 RETAINER,SEAL

National Stock Number:
5310-01-512-9900

Federal Supply Class:
5310

National Item Identification Number:
015129900

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:
3539060C103KT1ANIXTER
3539060C1338X5ND DEFENSE LLC
3539060C189346NAVISTAR INTL CORP TRUCK BR OHIO PLANT


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIALSTEEL OVERALL
III SUPPLEMENTARY FEATURESWASH FLAT SPECIAL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSNPAC
OVERALL DIAMETER25.0 MILLIMETERS NOMINAL
SPECIAL FEATURESMATERIAL: STEEL 1040-1086; SURFACE TREATMENT: QUENCHED AND TEMPERED, ZINC PLATING
SURFACE TREATMENTZINC OVERALL
THICKNESS2.0 MILLIMETERS NOMINAL


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