Part Details | THRUST WASHER BEARING
3120-00-740-6473 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: 114R21781, 114R2178-1, 114R21781, 114R2178-1, 1560HC1022, 1560HC1-022, 3120-00-740-6473, 00-740-6473, 3120007406473, 007406473
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 31 | JAN 01, 1963 | 00-740-6473 | 13211 ( BEARING, WASHER, THRUST ) |
REFERENCE DRAWINGS & PICTURES
COUNTERBORED
ROUND W/ROUND KEYWAYS
ROUND
Cross Reference | NSN 3120-00-740-6473
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 114R2178-1 | 81205 | THE BOEING COMPANYDBA BOEING |
| 114R2178-1 | 77272 | THE BOEING COMPANYDBA BOEING |
| 1560HC1-022 | 81996 | U S ARMY AVIATION AND MISSILECOMMAND |
Technical Data | NSN 3120-00-740-6473
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | ROUND |
| OUTSIDE DIAMETER | 4.7600 INCHES MINIMUM AND 4.7800 INCHES MAXIMUM |
| CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED |
| COUNTERBORE DIAMETER | 4.3900 INCHES MINIMUM AND 4.4100 INCHES MAXIMUM |
| COUNTERBORE DEPTH | 0.0550 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM |
| OVERALL THICKNESS | 0.1770 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM |
| CENTER HOLE SHAPE STYLE | ROUND W/ROUND KEYWAYS |
| MAJOR DIAMETER | 4.3900 INCHES MINIMUM AND 4.4100 INCHES MAXIMUM |
| MINOR DIAMETER | 4.0070 INCHES MINIMUM AND 4.0090 INCHES MAXIMUM |
| CENTER HOLE KEYWAY RADIUS | 0.2300 INCHES MINIMUM AND 0.2700 INCHES MAXIMUM |
| CENTER HOLE KEYWAY QUANTITY | 8 |
| SPECIAL FEATURES | IDENTICAL COUNTER BORE ON OPPOSITE BEARING SURFACE |