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National Stock Number:
5340-00-914-8395
Federal Supply Class:
5340
National Item Identification Number:
009148395
Description:
SEAT,HELICAL COMPRESSION SPRING
Detail:
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.
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Manufacturer Information:
| 32448 | 89923 | NAPCO INDUSTRIES INC DIESEL ENGINE DIV | | 32448 | 95201 | NAPCO INTERNATIONAL LLC |
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Techincal Specification:
| BORE DIAMETER | 0.6540 INCHES NOMINAL | | BORE TAPER IN DEG | 14.3 | | DESIGN TYPE | SOLID | | DISTANCE FROM END TO FIRST STEP | 0.1410 INCHES NOMINAL | | END DIAMETER | 0.8120 INCHES NOMINAL | | FIRST STEP DIAMETER | 1.3610 INCHES MINIMUM AND 1.3710 INCHES MAXIMUM | | FIRST STEP LENGTH | 0.1090 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM | | MATERIAL | STEEL COMP 4140 | | OVERALL HEIGHT | 0.4370 INCHES NOMINAL | | SEAT ANGLE IN DEG | 30.0 | | SECOND END DIAMETER | 1.2500 INCHES NOMINAL | | SECOND STEP DIAMETER | 1.7180 INCHES NOMINAL | | SPECIAL FEATURES | MAGNETIC PERMEABILITY SHALL BE LESS THAN 1.2 BEFORE FABRICATION AND NOT GREATER THAN 2.0 AFTER FABRICATION AS MEASURED IN A 200 OERSTED FIELD | | STYLE DESIGNATOR | SEAT |
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