5310-01-581-8667 NUT,PLAIN,HEXAGON Index 5310-01-581-8669 WASHER,FLAT

National Stock Number:
5310-01-581-8668

Federal Supply Class:
5310

National Item Identification Number:
015818668

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:
100031631EFH8GENERAL DYNAMICS LAND SYSTEMS - FORCE PROTECTION INC.
100031701EFH8GENERAL DYNAMICS LAND SYSTEMS - FORCE PROTECTION INC.
T1726-0106970CABLECRAFT MOTION CONTROLS LLC
1001579061C19MIL-COTS CORPORATION
1726-0199062TUTHILL CORPORATION DBA REYCO/GRANNING DIV REYCO GRANNING


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER1.130 INCHES NOMINAL
MATERIALSTEEL OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, FLAT
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER3.750 INCHES NOMINAL
SURFACE TREATMENTZINC OVERALL
THICKNESS0.313 INCHES NOMINAL


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