4720-12-315-0875

2805-12-139-8542 2805121398542 121398542 FLANSCH

6675-15-139-8542 6675151398542 151398542 PLOTTER PER STAMPA

3940-00-139-8542 3940001398542 001398542 is an item usually rigid in construction designed to be attached to another item to adapt it to an eye, ring, loop, or the like, for hoisting. for items designed to be used for hoisting and also provide accommodations for adapting a jack to an aircraft jacking point, see adapter, aircraft jacking point. excludes bolt, eye; and sling (as modified).

1355-25-139-8542 1355251398542 251398542 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.

6515-01-139-8542 6515011398542 011398542 is an item having all surfaces polished, with an irregular hollow or solid cross section and a tapered leading edge, and which is designed for use in the intramedullary canal. the material from which the item is constructed must be completely corrosion resistant, inert in a living organism, and compatible with bone and tissue.