5340-01-201-9726 SEAT,HELICAL COMPRESSION SPRING Index 5325-01-201-9728 INSERT,SCREW THREAD

National Stock Number:
5340-01-201-9727

Federal Supply Class:
5340

National Item Identification Number:
012019727

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.


Manufacturer Information:
3837043-193835PARKER-HANNIFIN CORP
3837103-193835PARKER-HANNIFIN CORP


Techincal Specification:
DISTANCE FROM END TO FIRST STEP0.2700 INCHES NOMINAL
END DIAMETER0.2750 INCHES MINIMUM AND 0.2800 INCHES MAXIMUM
BORE DIAMETER0.2010 INCHES MINIMUM AND 0.2030 INCHES MAXIMUM
COUNTERBORE DIAMETER0.2500 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM
COUNTERBORE LENGTH0.0300 INCHES NOMINAL
DESIGN TYPESOLID
FIRST STEP DIAMETER0.2850 INCHES MINIMUM AND 0.2900 INCHES MAXIMUM
FIRST STEP LENGTH0.0900 INCHES NOMINAL
OVERALL HEIGHT0.4400 INCHES NOMINAL
MATERIAL HARDNESS RATING49.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
MATERIALSTEEL
SECOND STEP DIAMETER0.4800 INCHES NOMINAL
SPECIAL FEATURESNOT CASEHARDENED
STYLE DESIGNATORSEAT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPS13001, MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE
SURFACE TREATMENTPASSIVATE


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