3120-01-343-1120 BEARING,WASHER,THRUST Index 5310-01-343-1122 WASHER,FLAT

National Stock Number:
3120-01-343-1121

Federal Supply Class:
3120

National Item Identification Number:
013431121

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:
125D381AR-00203502GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT
125D381AR-0020BR59SIEMENS GOVERNMENT TECHNOLOGIES, INC.
125D381AR-002830Q4CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
125D381AR-0028FGX3CURTISS-WRIGHT ELECTRO-MECHANICAL CORP


Click here to Register for Free 30-day Trial