NSN 5340-00-039-7278

Part Details | HELICAL COMPRESSION SPRING SEAT

5340-00-039-7278 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: 6280386, 5340-00-039-7278, 00-039-7278, 5340000397278, 000397278

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-039-727824328 ( SEAT, HELICAL COMPRESSION SPRING )
REFERENCE DRAWINGS & PICTURES

SEAT

Cross Reference | NSN 5340-00-039-7278
Part Number Cage Code Manufacturer
628038619207U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM
Technical Data | NSN 5340-00-039-7278
Characteristic Specifications
MATERIAL STEEL
MATERIAL HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR SEAT
OVERALL HEIGHT1.3750 INCHES NOMINAL
END DIAMETER2.5000 INCHES NOMINAL
DISTANCE FROM END TO FIRST STEP0.9370 INCHES NOMINAL
FIRST STEP DIAMETER4.4690 INCHES NOMINAL
BORE DIAMETER1.7460 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM
COUNTERSINK DIAMETER2.1250 INCHES NOMINAL
COUNTERSINK ANGLE IN DEG45.0
CHAMFER ANGLE IN DEG14.0
DESIGN TYPE SOLID
SPECIAL FEATURESNOT CASEHARDENED
FSC APPLICATION DATAPINTLE HOOK,VEHICULAR