Product Details | GEAR CLUSTER

3020-00-705-1657 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.

Part Alternates: B311345, B-311-345, B311-345, 3020-00-705-1657, 00-705-1657, 3020007051657, 007051657

Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain

Supply Group (FSG) NSN Assign. NIIN
30 01 JAN 1963 00-705-1657

Drawings & Photos | NSN 3020-00-705-1657


Cross Reference | NSN 3020-00-705-1657

Part Number Cage Code Manufacturer
B-311-345 64846 GYRO SYSTEMS CO INC
B311-345 92755 NORTHROP GRUMMAN SYSTEMS CORPORATION DBA LAND & SELF PROTECTION SYSTEM

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Technical Data | NSN 3020-00-705-1657

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING SHAFT/HUB COPPER ALLOY ALL GEARS
SURFACE TREATMENT PASSIVATE SHAFT/HUB
CONSTRUCTION ASSEMBLED
DESIGN TYPE SPUR FIRST GEAR SPUR SECOND GEAR
NOMINAL OUTSIDE DIAMETER 2.7917 INCHES FIRST GEAR 1.9792 INCHES SECOND GEAR
NOMINAL OVERALL LENGTH 1.031 INCHES
BORE STYLE 1 PLAIN BOTH ENDS
BORE NOMINAL DIAMETER 0.250 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 1 PLAIN FIRST END 5 PINNED SECOND END 1 PLAIN BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH 0.016 INCHES FIRST END 0.6093 INCHES SECOND END 0.141 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL DIAMETER 0.813 INCHES FIRST END 0.500 INCHES SECOND END 1.000 INCHES BETWEEN FIRST AND SECOND GEAR
ATTACHMENT METHOD MOUNTING HOLE
SPECIAL FEATURES MTG HOLES 90 DEG APART

Restrictions/Controls & Freight Information | NSN 3020-00-705-1657

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 197339 WHEELS COG/GEAR/PINION I/S
Less than car load rating
Less than truck load rating R 65.0
Water commodity Code 593 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 3020-00-705-1657

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each