4810-20-003-8828 RETAINER,DISK,VALVE Index 5365-20-003-8897 SPACER,SPECIAL SHAPED

National Stock Number:
5310-20-003-8874

Federal Supply Class:
5310

National Item Identification Number:
200038874

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:
306740-00105257GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETERM5-0.0-6G
MATERIAL DOCUMENT AND CLASSIFICATIONAMS-QQ-S-766,TYPE 304, CONDITION A, FINISH 2B
MATERIALSTEEL CORROSION RESISTING OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, M5
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.500 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A 967
SURFACE TREATMENTPASSIVATE
THICKNESS0.035 INCHES MAXIMUM AND 0.027 INCHES MINIMUM


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