NSN 3120-01-057-2971

Part Details | THRUST WASHER BEARING

3120-01-057-2971 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.

Alternate Parts: 877915501 ITEM 44, 87791-5501 ITEM 44, 47759050044, 4775905-0044, 5164775906 ITEM 39, 516-4775906 ITEM 39, 5164775905 ITE, 516-4775905 ITE, 3120-01-057-2971, 01-057-2971, 3120010572971, 010572971

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31MAR 10, 197801-057-297113211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 3120-01-057-2971
Part Number Cage Code Manufacturer
87791-5501 ITEM 4496169ELECTRIC BOAT CORPORATION
4775905-004496169ELECTRIC BOAT CORPORATION
516-4775906 ITEM 3953711NAVAL SEA SYSTEMS COMMAND
516-4775905 ITE53711NAVAL SEA SYSTEMS COMMAND
Technical Data | NSN 3120-01-057-2971
Characteristic Specifications