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National Stock Number:
3120-00-661-5624
Federal Supply Class:
3120
National Item Identification Number:
006615624
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:
| 01412 | 14153 | DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA | | 08-500-121-00-032 | 25681 | ITT GOULDS PUMPS, INC. | | 08-500-121-00-032 | 92392 | ALLIS-CHALMERS CORP |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE FIRST INSIDE CORNER | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | CORNER SHAPE | SQUARE FOURTH OUTSIDE CORNER | | CORNER SHAPE | SQUARE SECOND INSIDE CORNER | | CORNER SHAPE | SQUARE SECOND OUTSIDE CORNER | | CORNER SHAPE | SQUARE THIRD OUTSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | DIAMETER | 2.5250 INCHES MINIMUM AND 2.5300 INCHES MAXIMUM | | FLANGE THICKNESS | 0.2400 INCHES MINIMUM AND 0.2450 INCHES MAXIMUM | | OUTSIDE DIAMETER | 3.7080 INCHES MINIMUM AND 3.7180 INCHES MAXIMUM | | OVERALL THICKNESS | 0.7500 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 934 OVERALL | | SHANK OUTSIDE DIAMETER | 3.4970 INCHES MINIMUM AND 3.4980 INCHES MAXIMUM | | SPECIAL FEATURES | GROOVE UNDER FLANGE 0.0625 IN. WIDE,0.0610 IN. DEEP | | STYLE DESIGNATOR | ROUND | | SURFACE CONDITION | GROUND |
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