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National Stock Number: 3110-00-851-8933
Federal Supply Class: 3110
National Item Identification Number: 008518933
Description: PLATE,RETAINING,BEARING
Detail: A comparatively flat rigid item, with or without a centrally located aperture, designed to hold an annular bearing or a sleeve bearing in a fitted inclosure. It must have drilled and/or tapped holes for mounting purposes. Excludes END BELL, ELECTRICAL ROTATING EQUIPMENT.
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Manufacturer Information:
6435-20264-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
APERTURE DIAMETER | 11.501 INCHES MINIMUM AND 11.502 INCHES MAXIMUM | BOLT CIRCLE HOLE QUANTITY | 8 | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM | OUTSIDE DIAMETER | 13.000 INCHES NOMINAL | OVERALL THICKNESS | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM | MATERIAL | STEEL COMP 4130 OR STEEL COMP 4340 OVERALL | MOUNTING BOLT CIRCLE DIAMETER | 12.500 INCHES NOMINAL | MOUNTING HOLE ARRANGEMENT STYLE | TWO BOLT HOLES CIRCLES | MOUNTING HOLE DIAMETER | 0.250 INCHES NOMINAL | MOUNTING HOLE TYPE | ROUND, THREADED | NOMINAL THREAD SIZE | 0.250 INCHES | SECOND BOLT CIRCLE DIAMETER | 1.126 INCHES NOMINAL | SPECIAL FEATURES | EACH LUG 1.750 IN.W BY 0.469 IN.LG,MAX SUFACE FINISH ALL SURFACE 90 UIN AA;APERTURE SHAPE ROUND AND INCLUDED;SHAPE:ROUND | SURFACE TREATMENT | OXIDE OVERALL | THREAD QUANTITY PER INCH | 28 | THREAD SERIES DESIGNATOR | UNF |
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