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FSC 3020 | Transmission Chain Sprockets Pulleys Gears
20182-1

Model: 20182-1

Spur Antibacklash Gear

Special Features:

Aataching holes spaced 90 degrees apart thrn hub

Properties:

Attachment Method

Mounting hole

Pitch Diameter

1.2767 inches

Teeth Quantity

Bore Style

Plain both ends

Mounting Hole Thread Series Designator

Unc transversely through hub, first end

Mounting Hole Thready Qty Per Inch (tpi)

40 transversely through hub, first end

Mounting Hole Thread Size

0.112 inches transversely through hub, first end

Mounting Hole Type And Quantity

2 threaded transversely through hub, first end

Outside Diameter

1.305 inches

Tooth Form

Standard

Pressure Angle

20.0000 degrees

Distance Between Body Face And Protruding Hub End

0.250 inches first end

Face Width

0.125 inches

Bore Diameter

0.188 inches both ends

Hub Style Designator

Plain first end

Hub Diameter

0.375 inches first end

Material

Aluminum alloy 2024 body

Material

Steel comp 303 hub

Material Specification

Qq-s-763, class 303, cond a federal specification single material response hub

Surface Treatment

Anodize body

Surface Treatment

Passivate hub

Style Designator

Protruding hub

NSN

3020-00-104-6369

Part Number

20182-1

Description

Gear,antibacklash,spur

CAGE

14632

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 20182-1 NSN 3020-00-104-6369

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