5330-33-003-1797 SEAL,PLAIN Index 4820-33-003-1799 VALVE,BALL

National Stock Number:
5310-33-003-1798

Federal Supply Class:
5310

National Item Identification Number:
330031798

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:
G03H019 REV A D N 40 POS 87D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
G03H019 REV A DN40 POS.871832BBAC VALVES, SA
T-32-871832BBAC VALVES, SA


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYFRICTION TOP
PERIPHERAL SHAPE STYLEROUND


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