NSN 5340-01-120-4902

Part Details | HELICAL COMPRESSION SPRING SEAT

5340-01-120-4902 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: 1B481421, 1B48142-1, 10112397, 1B481421, 1B48142-1, 5340-01-120-4902, 01-120-4902, 5340011204902, 011204902

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 19, 198101-120-490224328 ( SEAT, HELICAL COMPRESSION SPRING )
REFERENCE DRAWINGS & PICTURES

SEAT

Cross Reference | NSN 5340-01-120-4902
Part Number Cage Code Manufacturer
1B48142-118355BOEING COMPANY, THEDBA BOEING
10112397A486GNIMIKKEISTOKESKUS NCB FINLAND
1B48142-181873WOODWARD HRT, INC.
Technical Data | NSN 5340-01-120-4902
Characteristic Specifications
MATERIAL STEEL COMP 304
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 304, COND A FED SPEC SINGLE MATERIAL RESPONSE
SURFACE TREATMENT PASSIVATE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPS13001, MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE
STYLE DESIGNATOR SEAT
OVERALL HEIGHT0.2500 INCHES NOMINAL
END DIAMETER0.3030 INCHES MINIMUM AND 0.3080 INCHES MAXIMUM
DISTANCE FROM END TO FIRST STEP0.2120 INCHES NOMINAL
FIRST STEP DIAMETER0.5370 INCHES MINIMUM AND 0.5470 INCHES MAXIMUM
BORE DIAMETER0.2250 INCHES MINIMUM AND 0.2300 INCHES MAXIMUM
COUNTERSINK DIAMETER0.2550 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM
COUNTERSINK ANGLE IN DEG45.0
CHAMFER ANGLE IN DEG45.0
DESIGN TYPE SOLID
SPECIAL FEATURESNOT CASEHARDENED
FSC APPLICATION DATACYLINDER ASSEMBLY,ACTUATING LINEAR,AIRCRAFT