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National Stock Number:
3020-00-187-7859
Federal Supply Class:
3020
National Item Identification Number:
001877859
Description:
GEAR,SPUR
Detail:
A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also GEAR, ANTIBACKLASH, SPUR. For bulk material, see ROD, PINION.
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Manufacturer Information:
| 65850-05150-101 | 11371 | BMT AEROSPACE USA, INC. | | 65850-05150-101 | 11867 | EQUITABLE ENGINEERING COMPANY INC. | | 65850-05150-101 | 21540 | PRECISION GEAR INDUSTRIES LLC | | 65850-05150-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | 65850-05150-101 | 82001 | PCX AEROSTRUCTURES, LLC |
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Techincal Specification:
| ATTACHMENT METHOD | MOUNTING HOLE | | BODY STYLE | PLAIN, SOLID | | BOLT HOLE CIRCLE NOMINAL DIAMETER | 2.500 INCHES AXIALLY THROUGH FLANGE | | BORE NOMINAL DIAMETER | 0.975 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | FACE NOMINAL WIDTH | 0.260 INCHES | | FLANGE NOMINAL DIAMETER | 3.875 INCHES | | FLANGE NOMINAL THICKNESS | 0.280 INCHES | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL | | HUB NOMINAL DIAMETER | 1.215 INCHES BETWEEN BODY AND FLANGE | | HUB STYLE DESIGNATOR | PLAIN FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4340 OVERALL | | MOUNTING HOLE NOMINAL DIAMETER | 0.278 INCHES AXIALLY THROUGH FLANGE | | MOUNTING HOLE TYPE AND QUANTITY | 4 PLAIN AXIALLY THROUGH FLANGE | | NOMINAL DISTANCE BETWEEN OUTER BODY FACE AND INNER FLANGE FACE | 0.505 INCHES | | NOMINAL OUTSIDE DIAMETER | 1.570 INCHES | | PITCH DIAMETER | 1.4286 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 OR QUALITY NUMBER 11 | | PRESSURE ANGLE | 25.0000 DEGREES | | STYLE DESIGNATOR | HUBLESS | | SURFACE TREATMENT | PHOSPHATE OVERALL | | TEETH QUANTITY | 20 | | TEST DATA DOCUMENT | 81349-MIL-I-6868 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.). | | TOOTH FORM | STANDARD |
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