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National Stock Number:
5340-01-092-7494
Federal Supply Class:
5340
National Item Identification Number:
010927494
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:
| 70410-02506-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| DISTANCE FROM END TO FIRST STEP | 0.1564 INCHES MINIMUM AND 0.1566 INCHES MAXIMUM | | END DIAMETER | 0.5600 INCHES MINIMUM AND 0.5650 INCHES MAXIMUM | | BORE DIAMETER | 0.4400 INCHES MINIMUM AND 0.4420 INCHES MAXIMUM | | COUNTERSINK DIAMETER | 0.5300 INCHES NOMINAL | | COUNTERSINK ANGLE IN DEG | 90.0 | | FIRST STEP DIAMETER | 0.9150 INCHES MINIMUM AND 0.9200 INCHES MAXIMUM | | OVERALL HEIGHT | 0.2050 INCHES MINIMUM AND 0.2060 INCHES MAXIMUM | | MATERIAL HARDNESS RATING | 56.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM | | MATERIAL | STEEL | | SPECIAL FEATURES | MATL-STEEL QQ-S-763,CL 440C,COND A;NOT CASEHARDENED | | STYLE DESIGNATOR | SEAT | | SURFACE TREATMENT | PASSIVATE |
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