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National Stock Number: 5340-00-411-4051
Federal Supply Class: 5340
National Item Identification Number: 004114051
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:
LW-16475 | K8793 | OXFORD AVIATION SERVICES LTD T/A CSE AVIATION | LW10076 | 80254 | TEXTRON LYCOMING INC WILLIAMSPORT PLANT | LW16475 | 80254 | TEXTRON LYCOMING INC WILLIAMSPORT PLANT | LW16475 | R1120 | SATAIR A/S |
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Techincal Specification:
BORE DIAMETER | 0.5030 INCHES MINIMUM AND 0.5080 INCHES MAXIMUM | COUNTERBORE DIAMETER | 0.6850 INCHES MINIMUM AND 0.6900 INCHES MAXIMUM | COUNTERSINK ANGLE IN DEG | 20.0 | DESIGN TYPE | SOLID | DISTANCE FROM END TO FIRST STEP | 0.3820 INCHES MINIMUM AND 0.3870 INCHES MAXIMUM | END DIAMETER | 0.9350 INCHES MINIMUM AND 0.9450 INCHES MAXIMUM | FIRST STEP DIAMETER | 1.2750 INCHES MINIMUM AND 1.2850 INCHES MAXIMUM | FIRST STEP LENGTH | 0.0650 INCHES NOMINAL | MATERIAL | STEEL | OVERALL HEIGHT | 0.5300 INCHES NOMINAL | SECOND COUNTERSINK DIAMETER | 0.4060 INCHES MINIMUM AND 0.4160 INCHES MAXIMUM | SEAT ANGLE IN DEG | 30.0 | SECOND STEP DIAMETER | 1.6600 INCHES MINIMUM AND 1.6700 INCHES MAXIMUM | SPECIAL FEATURES | NOT CASEHARDENED;MATL-STEEL AISI 1113 | STYLE DESIGNATOR | SEAT |
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