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National Stock Number:
5340-00-831-7052
Federal Supply Class:
5340
National Item Identification Number:
008317052
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:
| S6165-61553-001 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | S6165-61553-1 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| DISTANCE FROM END TO FIRST STEP | 0.6230 INCHES MINIMUM AND 0.6320 INCHES MAXIMUM | | END DIAMETER | 0.8120 INCHES NOMINAL | | BORE DIAMETER | 0.3800 INCHES MINIMUM AND 0.3900 INCHES MAXIMUM | | CHAMFER ANGLE IN DEG | 45.0 | | COUNTERBORE DIAMETER | 0.6820 INCHES MINIMUM AND 0.6920 INCHES MAXIMUM | | COUNTERSINK ANGLE IN DEG | 90.0 | | COUNTERSINK DIAMETER | 0.4210 INCHES NOMINAL | | COUNTERBORE LENGTH | 0.0040 INCHES MINIMUM AND 0.0080 INCHES MAXIMUM | | DESIGN TYPE | SOLID | | FIRST STEP DIAMETER | 1.3750 INCHES NOMINAL | | OVERALL HEIGHT | 0.6770 INCHES MINIMUM AND 0.6820 INCHES MAXIMUM | | MATERIAL HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM | | MATERIAL | STEEL | | SPECIAL FEATURES | NOT CASEHARDENED;MATL-STEEL MIL-S-6758 COND C | | STYLE DESIGNATOR | SEAT |
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