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National Stock Number:
3120-01-611-9770
Federal Supply Class:
3120
National Item Identification Number:
016119770
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:
| 167-6985314 PART 38 | 53711 | NAVAL SEA SYSTEMS COMMAND | | H542-1705 PART 38 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| DIAMETER | 1.030 INCHES MINIMUM AND 1.189 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | FLANGE THICKNESS | 0.375 INCHES NOMINAL | | MAJOR DIAMETER | 1.188 INCHES MINIMUM AND 1.189 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | DELRIN AFDE588 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | PLASTIC ACETAL OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 2.860 INCHES NOMINAL | | OVERALL THICKNESS | 0.940 INCHES NOMINAL | | SHANK OUTSIDE DIAMETER | 1.030 INCHES NOMINAL | | SPECIAL FEATURES | 4 MOUNTING HOLES 0.342 THRU, C'BORED 0.640 IN; EQUICISTANT ON BOLH HOLE CIRCLE WITH 2.188 IN. DIA; ON SAME CIRCLE, 26.78 DEGREE FROM 1 OF THESE HOLES IS A HOLE 0.250 IN. THRU | | STYLE DESIGNATOR | ROUND |
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