NSN 3120-01-031-8360 2498557 , 01-031-8360, 010318360
Product Details | THRUST WASHER BEARING
3120-01-031-8360 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.
Part Alternates: 2498557 , 3120-01-031-8360, 01-031-8360, 3120010318360, 010318360
Bearings | Bearings, Plain, Unmounted
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 31 | 14 OCT 2008 | 01-031-8360 | 13211 ( BEARING, WASHER, THRUST ) |
Drawings & Photos | NSN 3120-01-031-8360
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Technical Data | NSN 3120-01-031-8360
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP E52100 OVERALL |
| HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL |
| STYLE DESIGNATOR | 23 ROUND |
| OUTSIDE DIAMETER | 7.5250 INCHES MINIMUM AND 7.5290 INCHES MAXIMUM |
| CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER SQUARE FIRST INSIDE CORNER SQUARE SECOND INSIDE CORNER |
| CROSS-SECTIONAL SHAPE STYLE | 35 RECTANGULAR |
| OVERALL THICKNESS | 0.3115 INCHES NOMINAL |
| OUTSIDE SPHERICAL RADIUS | ANY ACCEPTABLE |
| SPHERICAL DEPTH | 0.0015 INCHES MINIMUM AND 0.0025 INCHES MAXIMUM |
| CENTER HOLE SHAPE STYLE | 42 ROUND |
| DIAMETER | 5.7500 INCHES NOMINAL |
| SURFACE FINISH | 32.0 MICROINCHES LEFT SIDE 32.0 MICROINCHES RIGHT SIDE |
| SPECIAL FEATURES | ONE BEARING SURFACE TAPERED TO 0.3080 IN. |
| DEPARTURE FROM CITED DOCUMENT | AS DIFFERENTIATED BY SPECIAL QUALITY CONTROL TESTING FOR MK 48 TORPEDO |
| CRITICALITY CODE JUSTIFICATION | ZZZW |
Restrictions/Controls & Freight Information | NSN 3120-01-031-8360
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Precious Metals Indicator Code: | A | Item does not contain precious metal |
| Criticality Code: | Y | The item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||