Product Details | SPUR ANTIBACKLASH GEAR

3020-00-563-3816 An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.

Part Alternates: 8171669, 3020-00-563-3816, 00-563-3816, 3020005633816, 005633816

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

Supply Group (FSG) NSN Assign. NIIN
30 01 JAN 1963 00-563-3816

Drawings & Photos | NSN 3020-00-563-3816


Cross Reference | NSN 3020-00-563-3816

Part Number Cage Code Manufacturer
8171669 18876 U S ARMY AVIATION AND MISSILE COMMAND

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Technical Data | NSN 3020-00-563-3816

Characteristic Specifications
MATERIAL STEEL COMP 416 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING 25.0 ROCKWELL C MINIMUM OVERALL
TEETH QUANTITY 27
TOOTH FORM STANDARD
PRESSURE ANGLE 14.5000 DEGREES
PRECISION CLASSIFICATION QUALITY NUMBER 9
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 1.1250 INCHES NOMINAL
NOMINAL OVERALL LENGTH 0.406 INCHES
NOMINAL OUTSIDE DIAMETER 1.217 INCHES
FACE NOMINAL WIDTH 0.250 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.156 INCHES FIRST END
BORE STYLE 10A W/KEYWAY BOTH ENDS
BORE NOMINAL DIAMETER 0.240 INCHES BOTH ENDS
KEYWAY NOMINAL WIDTH 0.062 INCHES BOTH ENDS
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM 0.168 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 1 PLAIN FIRST END
HUB NOMINAL DIAMETER 0.406 INCHES FIRST END
MANUFACTURERS CODE 18876
DESIGN CONTROL REFERENCE 8171669

Restrictions/Controls & Freight Information | NSN 3020-00-563-3816

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 133300 MACHINERY/MACHINES NOI
Less than car load rating
Less than truck load rating W Rating Variable
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 3020-00-563-3816

Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation CodeSXSX:AF SICA RESIDUAL MMAC-OC-ALC
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
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
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 CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each