1237437-1

Spur Antibacklash Gear

NSN 3020-00-341-9844

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

UOM:

NIIN:

003419844

Product Features

Additional gear is third step of first end, pitch diameter 0.3218 inch , 0.3228 inch , 41 teeth, 20 degree pressure angle

Technical Specifications of NSN

Pitch Diameter:

Between 0.6289 inches and 0.6299 inches

Teeth Quantity:

Outside Diameter:

0.644 inches

Nominallength:

0.536 inches

Tooth Form:

Standard

Pressure Angle:

20.0000 degrees

Distance Between Body Face And Protruding Hub End:

0.098 inches second end

Hub Style Designator:

2 steps both ends

End Length:

0.051 inches first end

End Length:

0.058 inches second end

Precision Classification:

Quality number 10 or quality number 11

End Diameter:

0.046 inches first end

End Diameter:

0.046 inches second end

First Step Length:

0.046 inches first end

First Step Diameter:

0.095 inches first end

Second Step Length:

0.154 inches first end

Second Step Diameter:

0.337 inches first end

Material:

Steel comp 416

Material Specification:

Qq-s-763, class 6, type c federal specification single material response

Style Designator:

Peripheral face, hubless

NSN:

3020-00-341-9844

Item Name:

Gear,antibacklash,spur

Cage Code:

55972

Other Related Parts

No other part numbers with same form, fit, and function found.

Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

26668

FIIG:

A27300

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

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

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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Pricing & Availability

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Definition Definition of approved item name (AIN): "Spur Antibacklash Gear"

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.