NSN 5340-01-026-6746

Part Details | HELICAL COMPRESSION SPRING SEAT

5340-01-026-6746 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: 6696771, 66-9677-1, 669677, 66-9677, 5340-01-026-6746, 01-026-6746, 5340010266746, 010266746

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 29, 197601-026-674624328 ( SEAT, HELICAL COMPRESSION SPRING )
REFERENCE DRAWINGS & PICTURES

SEAT

Cross Reference | NSN 5340-01-026-6746
Part Number Cage Code Manufacturer
66-9677-181205THE BOEING COMPANYDBA BOEING
66-967781205THE BOEING COMPANYDBA BOEING
Technical Data | NSN 5340-01-026-6746
Characteristic Specifications
MATERIAL ALUMINUM ALLOY
STYLE DESIGNATOR6 SEAT
OVERALL HEIGHT2.9300 INCHES MINIMUM AND 2.9700 INCHES MAXIMUM
END DIAMETER1.2200 INCHES MINIMUM AND 1.2300 INCHES MAXIMUM
DISTANCE FROM END TO FIRST STEP0.2000 INCHES NOMINAL
FIRST STEP DIAMETER1.7800 INCHES NOMINAL
FIRST STEP LENGTH0.1200 INCHES NOMINAL
SECOND END DIAMETER1.5400 INCHES NOMINAL
BORE DIAMETER0.6800 INCHES MINIMUM AND 0.6900 INCHES MAXIMUM
COUNTERBORE LENGTH2.1500 INCHES NOMINAL
COUNTERBORE DIAMETER1.2800 INCHES MINIMUM AND 1.2900 INCHES MAXIMUM
SPHERICAL SEAT TOP RADIUS0.0200 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM
DESIGN TYPE SOLID
SPECIAL FEATURESCOUNTERSINK ANGLE ALONG COUNTERBORE LENGTH 43.0 TO 47.0 DEGREES; SEAT ANGLE 42.0 TO 48.0 DEGREES; LEFT END BODY CORNER 0.0900 TO 0.1500 INCH R; CHAMFER RIGHT END CORNERS 45.0 DEGREES BY 0.03 INCHES