5998-00-997-0273 CIRCUIT CARD ASSEMBLY Index 1210-00-997-0276 ORDNANCE ALTERATION

National Stock Number:
3020-00-997-0275

Federal Supply Class:
3020

National Item Identification Number:
009970275

Description:
GEAR CLUSTER

Detail:
A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see GEARSHAFT (as modified). Excludes GEAR SUBASSEMBLY, SPEED DECREASER.


Manufacturer Information:
77C708936-103538LOCKHEED MARTIN CORPORATION
77C708936P00103538LOCKHEED MARTIN CORPORATION


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BACKLASH DESIGNATIONGRADE C ALL GEARS
BORE NOMINAL DIAMETER0.187 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
CONSTRUCTIONSOLID
DESIGN TYPESPUR ALL GEARS
HUB NOMINAL DIAMETER0.315 INCHES BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.250 INCHES BETWEEN FIRST AND SECOND GEAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-764,COND A FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-764,COND A FED SPEC 3RD MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OVERALL
NOMINAL OUTSIDE DIAMETER0.406 INCHES SECOND GEAR
NOMINAL OUTSIDE DIAMETER0.801 INCHES FIRST GEAR
NOMINAL OVERALL LENGTH0.562 INCHES
PRECISION CLASSIFICATIONQUALITY NUMBER 11 OR QUALITY NUMBER 12 ALL GEARS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL


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