NSN 3020-00-019-0174

Spur Antibacklash Gear

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

NIIN:

000190174

Pricing & Availability

Submit this form for current pricing and availability quote on part number and/or cross reference parts.

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.

Description

NSN 3020-00-019-0174. Pitch diameter 1.354 inches

3020-00-019-0174 Spec. NSN part characteristics

MRC

Name

Detail

MRC:

ABSX

Attachment Method

Mounting hole

MRC:

AGJS

Pitch Diameter

1.354 inches

MRC:

AJLA

Teeth Quantity

130

MRC:

CMLK

Mounting Hole Thread Series Designator

Unc transversely through hub, first end

MRC:

CMLM

Mounting Hole Thread Quantity Per Inch

40 transversely through hub, first end

MRC:

CQLT

Mounting Hole Nominal Thread Size

0.112 inches transversely through hub, first end

MRC:

CTQY

Mounting Hole Type and Quantity

2 threaded transversely through hub, first end

MRC:

CWCD

Nominal Outside Diameter

1.374 inches

MRC:

CWFR

Nominal Overall Length

0.375 inches

MRC:

CWNH

Tooth Form

Standard

MRC:

CWPP

Pressure Angle

20 degrees

MRC:

CWQL

Nominal Distance Between Body Face and Protruding Hub End

0.25 inches first end

MRC:

CWRM

Face Nominal Width

0.125 inches

MRC:

CWRS

Bore Nominal Diameter

0.12 inches both ends

MRC:

CWTR

Hub Style Designator

Pinned first end

MRC:

CWTX

Hub Nominal Diameter

0.375 inches first end

MRC:

CWWK

Precision Classification

Quality number 12

MRC:

MATT

Material

Steel comp 303

MRC:

MDCL

Material Document and Classification

Mil-s-7720, comp 303 military specification single material response

MRC:

SFTT

Surface Treatment

Passivate

MRC:

STDC

Surface Treatment Document and Classification

Mil-f-14072 military specification single treatment response

MRC:

STYL

Style Designator

Protruding hub

Cross Reference Parts Part numbers that meet the specification outlined on this page and set by the OEM

Part Number

Cage

RNCC

RNVC

DAC

RNAAC

Status

MSDS

SADC

Part Number:

10128780-2

Cage Code:

18876

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

Indicates a design/source control reference item

Inidicates part number has been superseded

Identification Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

26668

FIIG:

A27300

Concept No.:

App. Key:

Cond. Code:

Status:

Part End Users MOE: Major organizational entities

Name

MOE Code

MOE Rule

PICA

DSOR

User:

Spain

MOE:

Rule:

YB01

PICA:

DSOR:

User:

Republic of Korea

MOE:

Rule:

ZH01

PICA:

DSOR:

User:

Turkey

MOE:

Rule:

ZW01

PICA:

DSOR:

Material & Special Handling Hazmat, Precious Metals, Criticality, Enviroment, and ESD

HMIC

PMIC

ESD

ENAC

ADPE

CRITL

HMIC:

PMIC:

ESD:

ADPE:

CRITL:

Hazmat (HMIC) N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Precious Metals (PMIC) U

Precious metal content is unknown

Criticality X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Identification Codes

HMIC: Hazardous Material Indicator Code. Identifies a hazardous item.

PMIC: Precious Metal Indicator Code. Identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.

ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.

ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.

CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.

Import / Export Schedule B Classification

Schedule B

NAIC

End Use

SITC

USDA

HITECH

Schedule B:

8483409000

NAICS:

333612

End Use Class:

21180

SITC:

74840

USDA:

HITECH:

Schedule B Codes Definitions:

Schedule B 8483409000

Gears and Gearing, Other Than Toothed Wheels, Chain Sprockets and Other Transmission Elements Entered Separately

End Use Code 21180

Industrial Machines, Other

Standard Intl. Trade Class (SITC) 74840

Gears and Gearing; Ball Screws; Gear Boxes and Other Speed Changers (including Torque Converters)

Freight Universal and National freight and handling information

NMFC

Class

UFC

LTL

LCL

WCC

TCC

SHC

ADC

ACC

NMFC:

197339

NMF Description:

Wheels Cog/gear/pinion I/s

UFC:

96710

LTL:

65.0

LCL:

60.0

WCC:

593

TCC:

SHC:

ADC:

ACC:

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 593

Motors and parts, (machinery and parts),(less than 35 feet).

Air Commodity (ACC) B

Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater.

Air Dimensions (ADC) A

Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Air Special Handling (SHC) 9

Other or no special handling required (sh)

Freight Codes

NAIC: North American Industry Classification. Classifies items and business activity for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy.

SITC: Standard International Trade Classification.

NMFC: National motor freight classification. A six position numeric code, which divides articles into groups or classes according to physical characteristics. the classification is based on truckloads vs. less than truckload.

UFC: Universal freight classification. a five position numeric code, which divides articles into groups or classes according to physical characteristics. the classification is based on carload vs. less than carload.

LTL: Less than a truckload rating.

LCL: Less than a carload rating.

WCC: Water commodity code. A three position code that indicates all shipments via water.

TCC: Type of Cargo Code. A one position code for all shipments via water to identify the type of cargo included within the shipment unit.

SHC: Special Handling Code. A one position code for all shipments via water to identify the exception handling required for cargo included within the shipment unit

ADC: Air Dimension Code. A one position alpha code that identifies dimensional characteristics of air shipments by relating the length, width, or height dimensions of the largest piece to the minimum size cargo door opening of an aircraft

ACC: Air Commodity Code. A one position code for all shipments via air to identify material for manifesting and customs requirements