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National Stock Number:
3110-00-982-9994
Federal Supply Class:
3110
National Item Identification Number:
009829994
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:
| 6435-20049-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| APERTURE DIAMETER | 8.302 INCHES MINIMUM AND 8.322 INCHES MAXIMUM | | BOLT CIRCLE HOLE QUANTITY | 12 | | COUNTERBORE DEPTH | 0.230 INCHES NOMINAL | | COUNTERBORE DIAMETER | 8.900 INCHES MINIMUM AND 8.920 INCHES MAXIMUM | | FIRST RAISED SURFACE OUTSIDE DIAMETER | 9.177 INCHES MINIMUM AND 9.197 INCHES MAXIMUM | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM | | OUTSIDE DIAMETER | 9.615 INCHES MINIMUM AND 9.635 INCHES MAXIMUM | | OVERALL THICKNESS | 0.230 INCHES NOMINAL | | MATERIAL | STEEL COMP 4130 OVERALL | | MOUNTING BOLT CIRCLE DIAMETER | 9.500 INCHES NOMINAL | | MOUNTING HOLE ARRANGEMENT STYLE | SINGLE BOLT HOLE CIRCLE | | MOUNTING HOLE DIAMETER | 0.312 INCHES NOMINAL | | MOUNTING HOLE TYPE | ROUND, THREADED | | NOMINAL THREAD SIZE | 0.312 INCHES | | SPECIAL FEATURES | 12 SCALLOPS EQUALLY SPACED BETWEEN HOLES ON OD;MAX SURFACE FINISH-ALL SURFACES 100 MICROINCHES AA;RETAINER SAW CUT DIAGONALLY AT 75 AND 255 DEG BY 0.062 IN.W;RAISED SURFACE FEATURE INCLUDED;APERTURE SHAPE ROUND AND INCLUDED;APERTURE TYPE:COUNTERBORED;SHAPE:ROUND | | RAISED SURFACE HEIGHT | 0.207 INCHES NOMINAL | | SURFACE TREATMENT | OXIDE OVERALL | | TEST DATA DOCUMENT | 81349-MILI6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNF |
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