5365-01-356-5126 SPACER,SLEEVE Index 5325-01-356-5128 STUD,TURNLOCK FASTENER

National Stock Number:
3120-01-356-5127

Federal Supply Class:
3120

National Item Identification Number:
013565127

Description:
BEARING,WASHER,THRUST

Detail:
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.


Manufacturer Information:
123-5766744 ITEM 7453711NAVAL SEA SYSTEMS COMMAND
EN DM101078 ITEM 7496169ELECTRIC BOAT CORPORATION


Techincal Specification:
MATERIALPLASTIC POLYETHYLENE OVERALL
STYLE DESIGNATORROUND
OUTSIDE DIAMETER4.0000 INCHES NOMINAL
CORNER SHAPEROUND FIRST OUTSIDE CORNER
ROUND SECOND OUTSIDE CORNER
CHAMFERED FIRST INSIDE CORNER
CHAMFERED SECOND INSIDE CORNER
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL THICKNESS1.0000 INCHES NOMINAL
CENTER HOLE SHAPE STYLEROUND
DIAMETER3.4870 INCHES NOMINAL
SURFACE FINISH32.0 MICROINCHES LEFT SIDE
32.0 MICROINCHES RIGHT SIDE


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