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		                        | National Stock Number:
 5340-01-498-1510
 
 Federal Supply Class:
 5340
 
 National Item Identification Number:
 014981510
 
 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:
 
 | 0191000123 | 15187 | EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP |  | NMP-701-12 | 75954 | KUNKLE INDUSTRIES INC LONERGAN VALVE DIV | 
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 Techincal Specification:
 
 | MATERIAL HARDNESS RATING | 31.0 ROCKWELL A MINIMUM |  | MATERIAL | COPPER ALLOY |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | LOWER SPRING STEP |  | SPHERICAL SEAT TOP RADIUS | 0.5000 INCHES NOMINAL |  | STYLE DESIGNATOR | SEAT | 
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