Product Details | SPUR ANTIBACKLASH GEAR

3020-00-102-3754 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: SMB617444, SM-B-617444, 3020-00-102-3754, 00-102-3754, 3020001023754, 001023754

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

Supply Group (FSG) NSN Assign. NIIN
30 29 MAY 1968 00-102-3754

Drawings & Photos | NSN 3020-00-102-3754


Demand History | NSN 3020-00-102-3754

Part Number Request Date QTY Origin
3020-00-102-3754 2007-04-91 2 DIBBS
3020-00-102-3754 2006-02-41 1 DIBBS
3020-00-102-3754 2006-02-41 1 DIBBS

Cross Reference | NSN 3020-00-102-3754

Part Number Cage Code Manufacturer
SM-B-617444 80063 US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS
SMB617444 04655 GENERAL DYNAMICS C4 SYSTEMS, INC.
SMB617444 36180 ULTRA ELECTRONICS MARITIME SYSTEMSINC DBA ULTRA

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Technical Data | NSN 3020-00-102-3754

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 2024 BODY STEEL COMP 303 HUB
MATERIAL DOCUMENT AND CLASSIFICATION FED STD 66 FED STD SINGLE MATERIAL RESPONSE HUB
SURFACE TREATMENT ANODIZE BODY PASSIVATE HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-F-14072 FINISH E511 MIL SPEC SINGLE TREATMENT RESPONSE BODY MIL-F-14072,FINSIH E300 MIL SPEC SINGLE TREATMENT RESPONSE HUB
TEETH QUANTITY 127
TOOTH FORM STANDARD
PRESSURE ANGLE 20.0000 DEGREES
BACKLASH DESIGNATION GRADE C
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 1.5875 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER 1.6125 INCHES
FACE NOMINAL WIDTH 0.104 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.281 INCHES FIRST END
BORE STYLE 1 PLAIN BOTH ENDS
BORE NOMINAL DIAMETER 0.187 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 1 PLAIN FIRST END
HUB NOMINAL DIAMETER 0.250 INCHES FIRST END
CLAMPING SURFACE NOMINAL LENGTH 0.250 INCHES FIRST END
ATTACHMENT METHOD CLAMP
MANUFACTURERS CODE 04655
DESIGN CONTROL REFERENCE SMB617444

Restrictions/Controls & Freight Information | NSN 3020-00-102-3754

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 CL U.S. Army Communications-Electronics
Fort Monmouth, NJ 07703-5006
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 3020-00-102-3754

Category Code Description
Materiel Category and Inventory ManagerJ Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
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 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