5310-01-554-8325 WASHER,FLAT Index 5310-01-555-9054 NUT,SELF-LOCKING,HEXAGON

National Stock Number:
5310-01-555-6004

Federal Supply Class:
5310

National Item Identification Number:
015556004

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:
1002626161C19MIL-COTS CORPORATION
352492945152OSHKOSH CORP
35249290030Y3H3FASTENAL COMPANY
352492900345152OSHKOSH CORP
352492900375Q65OSHKOSH DEFENSE LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER10.500 MILLIMETERS MINIMUM AND 10.770 MILLIMETERS MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSNPAC
OVERALL DIAMETER19.480 MILLIMETERS MINIMUM AND 20.000 MILLIMETERS MAXIMUM
THICKNESS1.800 MILLIMETERS MINIMUM AND 2.200 MILLIMETERS MAXIMUM


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