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		                             National Stock Number: 5340-01-031-5217
  Federal Supply Class: 5340
  National Item Identification Number: 010315217
  Description: SEAT,HELICAL COMPRESSION SPRING
  Detail: A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore designed to accommodate the end of the spring. It is used to position the spring, but does not encase the spring or restrain lateral motion. It may be used in conjunction with a RETAINER, HELICAL COMPRESSION SPRING. Excludes WASHER (1), (as modified); SEAT, BALL SOCKET and HOLDER, SPRING. See also ROTOR, ENGINE POPPET VALVE. 
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  Manufacturer Information:
 | 361796 | 62983 | EATON AEROSPACE, LLC |   
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  Techincal Specification:
 | END DIAMETER | 0.2250 INCHES NOMINAL |  | DESIGN TYPE | SOLID |  | FIRST STEP DIAMETER | 0.4820 INCHES NOMINAL |  | MATERIAL HARDNESS RATING | 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |  | MATERIAL | STEEL |  | OVERALL HEIGHT | 1.2400 INCHES NOMINAL |   
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