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National Stock Number:
5340-00-890-5191
Federal Supply Class:
5340
National Item Identification Number:
008905191
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:
| 718980-2 | 73030 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| BORE DIAMETER | 0.2080 INCHES MINIMUM AND 0.2230 INCHES MAXIMUM | | COUNTERBORE DIAMETER | 0.3300 INCHES MINIMUM AND 0.3370 INCHES MAXIMUM | | COUNTERBORE LENGTH | 0.1300 INCHES MINIMUM AND 0.1400 INCHES MAXIMUM | | COUNTERSINK ANGLE IN DEG | 35.0 | | COUNTERSINK DIAMETER | 0.4100 INCHES NOMINAL | | DESIGN TYPE | SOLID | | FIRST STEP DIAMETER | 0.4945 INCHES MINIMUM AND 0.4975 INCHES MAXIMUM | | FIRST STEP LENGTH | 0.1800 INCHES NOMINAL | | MATERIAL HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM | | MATERIAL | STEEL | | SPECIAL FEATURES | MATL-STEEL AMS 5612;NOT CASEHARDENED |
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