NSN 3120-00-309-4394
Part Details | THRUST WASHER BEARING
3120-00-309-4394 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: 20042688, 200042688, 3120-00-309-4394, 00-309-4394, 3120003094394, 003094394
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
31 | OCT 19, 1973 | 00-309-4394 | 13211 ( BEARING, WASHER, THRUST ) |
REFERENCE DRAWINGS & PICTURES
COUNTERBORED

ROUND

ROUND

Cross Reference | NSN 3120-00-309-4394
Part Number | Cage Code | Manufacturer |
---|---|---|
20042688 | 01220 | SYSTRON-DONNER CORPMICROWAVE/INSTRUMENT DIV |
200042688 | 01220 | SYSTRON-DONNER CORPMICROWAVE/INSTRUMENT DIV |
Technical Data | NSN 3120-00-309-4394
Characteristic | Specifications |
---|---|
STYLE DESIGNATOR | ROUND |
OUTSIDE DIAMETER | 0.3290 INCHES MINIMUM AND 0.3390 INCHES MAXIMUM |
CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED |
COUNTERBORE DIAMETER | 0.2500 INCHES NOMINAL |
COUNTERBORE DEPTH | 0.0200 INCHES NOMINAL |
OVERALL THICKNESS | 0.0490 INCHES MINIMUM AND 0.0510 INCHES MAXIMUM |
CENTER HOLE SHAPE STYLE | ROUND |
DIAMETER | 0.1630 INCHES MINIMUM AND 0.1690 INCHES MAXIMUM |
SURFACE CONDITION | GROUND |