NSN 5340-00-979-8581

Part Details | HELICAL COMPRESSION SPRING SEAT

5340-00-979-8581 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.

Alternate Parts: RB17529, 5340-00-979-8581, 00-979-8581, 5340009798581, 009798581

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 12, 196600-979-858124328 ( SEAT, HELICAL COMPRESSION SPRING )
REFERENCE DRAWINGS & PICTURES

SEAT

Cross Reference | NSN 5340-00-979-8581
Part Number Cage Code Manufacturer
RB1752951663CRANE CO.DBA LEAR ROMEC
Technical Data | NSN 5340-00-979-8581
Characteristic Specifications
MATERIAL STEEL COMP 416SE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5610 ASSN STD SINGLE MATERIAL RESPONSE
STYLE DESIGNATOR5 SEAT
OVERALL HEIGHT0.3440 INCHES NOMINAL
END DIAMETER0.3500 INCHES NOMINAL
DISTANCE FROM END TO FIRST STEP0.1250 INCHES NOMINAL
FIRST STEP DIAMETER0.4980 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
FIRST STEP LENGTH0.0630 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM
DESIGN TYPE SOLID
SPECIAL FEATURESNOT CASEHARDENED
FSC APPLICATION DATAVALVE,SAFETY RELIEF