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FSC 3020 | Transmission Chain Sprockets Pulleys Gears
680843-1

Model: 680843-1

Spur Antibacklash Gear

Properties:

Attachment Method

Clamp

Pitch Diameter

Between 0.9885 inches and 0.9895 inches

Teeth Quantity

Bore Style

Plain both ends

Backlash Designation

Grade e

Outside Diameter

1.009 inches

Tooth Form

Standard

Pressure Angle

20.0000 degrees

Distance Between Body Face And Protruding Hub End

0.140 inches second end

Distance Between Body Face And Protruding Hub End

0.063 inches first end

Face Width

0.110 inches

Bore Diameter

0.120 inches both ends

Hub Style Designator

Plain first end

Hub Style Designator

Split second end

Hub Diameter

0.182 inches second end

Clamping Surface Length

0.135 inches second end

Precision Classification

Quality number 10

Material

Aluminum alloy 6061

Material Specification

Qq-a-225/8, t651 federal specification single material response

Surface Treatment

Anodize

Style Designator

Protruding hubs

NSN

3020-01-025-8567

Part Number

680843-1

Description

Gear,antibacklash,spur

CAGE

06481

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 680843-1 NSN 3020-01-025-8567

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

26668

FIIG:

A27300

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

121870

UFC:

64910

LTL:

77.5

LCL:

WCC:

593

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8483409000
SITC: 74840
End Use: Industrial machines, other
NAICS: 333612
USDA: 1

Freight Class: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately