Part Details | THRUST WASHER BEARING
3120-00-787-4257 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: 2040401345, 204-040-134-5, 204040134005, 204-040-134-005, 3120-00-787-4257, 00-787-4257, 3120007874257, 007874257
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 31 | JAN 01, 1962 | 00-787-4257 | 13211 ( BEARING, WASHER, THRUST ) |
REFERENCE DRAWINGS & PICTURES
RECTANGULAR
ROUND
ROUND
Cross Reference | NSN 3120-00-787-4257
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 204-040-134-5 | 97499 | BELL HELICOPTER TEXTRON INC.DBA BELL HELICOPTER |
| 204-040-134-005 | 97499 | BELL HELICOPTER TEXTRON INC.DBA BELL HELICOPTER |
Technical Data | NSN 3120-00-787-4257
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | ROUND |
| OUTSIDE DIAMETER | 2.0400 INCHES MINIMUM AND 2.0600 INCHES MAXIMUM |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| OVERALL THICKNESS | 0.1265 INCHES MINIMUM AND 0.1270 INCHES MAXIMUM |
| CENTER HOLE SHAPE STYLE | ROUND |
| DIAMETER | 1.3750 INCHES MINIMUM AND 1.3755 INCHES MAXIMUM |
| SURFACE CONDITION | GROUND |
| FEATURES PROVIDED | CASEHARDENED |
| TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). AND 97499- BPS4075 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |