5310-00-249-5178 WASHER,RECESSED Index 5310-00-249-5180 WASHER,KEY,RECESSED

National Stock Number:
3120-00-249-5179

Federal Supply Class:
3120

National Item Identification Number:
002495179

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:
67A32A56130003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
MATERIALSTEEL COMP 440C OR
STEEL COMP 301 OR
STEEL COMP 302 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL
HARDNESS RATING72.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND
76.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM OVERALL
STYLE DESIGNATORROUND
OUTSIDE DIAMETER0.1490 INCHES NOMINAL
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL THICKNESS0.0100 INCHES NOMINAL
CENTER HOLE SHAPE STYLEROUND
DIAMETER0.1260 INCHES NOMINAL
SURFACE FINISH63.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
16.0 MICROINCHES LEFT SIDE
63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
16.0 MICROINCHES RIGHT SIDE


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