5331-00-001-8387

3040-14-329-5362 3040143295362 143295362 is a mechanical item used to connect a shaft and the mating member of a flexible or rigid coupling.

5310-14-256-7973 5310142567973 142567973 is 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.

3020-14-274-2099 3020142742099 142742099 is a gear in the form of a frustum of a cone, with straight, skewed, or curved teeth, cut on the external face. see also gear, antibacklash, bevel.

| DAC: 5 21 Oct 1972 5330-00-005-7268 Seal CEC3043REVDRNCC: 3 | RNVC: 2 | DAC: 2 9 Jun 1972 5331-00-001-8387

3120-14-256-8632 3120142568632 142568632 is an item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. it is designed for applications involving moving (kinetic) loads. except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. the thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. see also washer, flat and spacer, sleeve.