|
|
|
National Stock Number:
3120-01-031-8360
Federal Supply Class:
3120
National Item Identification Number:
010318360
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:
| 2498557 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 2498557 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6934967 | 53711 | NAVAL SEA SYSTEMS COMMAND |
|
Techincal Specification:
| MATERIAL | STEEL COMP E52100 OVERALL | | STYLE DESIGNATOR | 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 | RECTANGULAR | | OVERALL THICKNESS | 0.3115 INCHES NOMINAL | | SPHERICAL DEPTH | 0.0015 INCHES MINIMUM AND | | 0.0025 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 5.7500 INCHES NOMINAL | | SURFACE FINISH | 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 |
|
|