NSN 5340-00-721-5103

Part Details | HELICAL COMPRESSION SPRING SEAT

5340-00-721-5103 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: 119806, 5340-00-721-5103, 00-721-5103, 5340007215103, 007215103

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-721-510324328 ( SEAT, HELICAL COMPRESSION SPRING )
REFERENCE DRAWINGS & PICTURES

SEAT

Cross Reference | NSN 5340-00-721-5103
Part Number Cage Code Manufacturer
11980615434CUMMINS INC.
Technical Data | NSN 5340-00-721-5103
Characteristic Specifications
MATERIAL STEEL
MATERIAL HARDNESS RATING30.0 ROCKWELL B MINIMUM AND RBC65.0 ROCKWELL B MINIMUM
STYLE DESIGNATOR2 SEAT
OVERALL HEIGHT0.3030 INCHES MINIMUM AND 0.3530 INCHES MAXIMUM
END DIAMETER0.5200 INCHES MINIMUM AND 0.5400 INCHES MAXIMUM
DISTANCE FROM END TO FIRST STEP0.1260 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM
FIRST STEP DIAMETER0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM
FIRST STEP LENGTH0.0470 INCHES MINIMUM AND 0.0770 INCHES MAXIMUM
SECOND STEP DIAMETER1.0500 INCHES MINIMUM AND 1.0700 INCHES MAXIMUM
SECOND END DIAMETER1.0400 INCHES NOMINAL
BORE DIAMETER0.4325 INCHES NOMINAL
COUNTERSINK DIAMETER0.4850 INCHES NOMINAL
COUNTERBORE LENGTH0.0470 INCHES NOMINAL
COUNTERBORE DIAMETER0.6600 INCHES NOMINAL
BORE TAPER IN DEG7.0
COUNTERSINK ANGLE IN DEG45.0
CHAMFER ANGLE IN DEG7.0
SEAT ANGLE IN DEG80.0
DESIGN TYPE SOLID
SPECIAL FEATURESMATL-STEEL FED-STD-66 AISI/SAE 1010;NOT CASEHARDENED
FSC APPLICATION DATACYLINDER HEAD ASSY,DIESEL ENGINE