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National Stock Number:
3120-01-312-0733
Federal Supply Class:
3120
National Item Identification Number:
013120733
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.
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Manufacturer Information:
| 6097347 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| MATERIAL | STEEL COMP 316 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 2.5000 INCHES NOMINAL | | CORNER SHAPE | CHAMFERED FIRST INSIDE CORNER | | COUNTERBORE DIAMETER | 0.4590 INCHES MINIMUM AND | | 0.4670 INCHES MAXIMUM | | COUNTERBORE DEPTH | 0.2500 INCHES NOMINAL | | FLANGE THICKNESS | 0.1880 INCHES NOMINAL | | OVERALL THICKNESS | 0.4000 INCHES NOMINAL | | SHANK OUTSIDE DIAMETER | 0.7290 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 0.2800 INCHES MINIMUM AND | | 0.2870 INCHES MAXIMUM | | SPECIAL FEATURES | RIGHT SIDE OF FLANGE COVERED WITH PRESSURE SENSITIVE ADHESIVE TAPE PER VENDOR ITEM 6097358 |
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