NSN 3020-00-937-6451 NIIN 009376451 — Antibacklash Spur Gear

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NSN

Item Name

Assigned

DEMIL

Shelf Life

UOM

Using Services

NSN:

		3020-00-937-6451
3020009376451

Description:

GEAR,ANTIBACKLASH,SPUR

NSN Assigned:

18-JAN-67

DEMIL:

Shelf Life:

N/A

UOM:

Using Services:

Price Quote Get an up to date pricing and availability quote for this product. Order online or over the phone.

Quality Commitment

Serving our customers with quality and safety first.

AS9120 Certified
Audited supply chain
ITAR Registered
DDTC Registered
HAZMAT Certified
Customer service objectives
Every product 100% inspected

3020-00-937-6451 Specification Set by the OEM (see RNCC code 3)

Pitch Diameter AGJS:

0.4791in.

Teeth Quantity AJLA:

Bore Style ANTP:

plain both ends

Nominal Outside Diameter CWCD:

0.497in.

Tooth Form CWNH:

standard

Pressure Angle CWPP:

20.0000 degrees

Nominal Distance Between Body Face And Protruding Hub End CWQL:

0.202in. first end

Face Nominal Width CWRM:

0.092in.

Bore Nominal Diameter CWRS:

0.156in. both ends

Hub Style Designator CWTR:

pinned second end

Hub Nominal Diameter CWTX:

0.312in. second end

End Nominal Length CWWH:

0.184in. first end

Precision Classification CWWK:

quality number 10

End Nominal Diameter CWWN:

0.187in. first end

First Step Nominal Length CWWS:

0.160in. first end

First Step Nominal Diameter CWXB:

0.250in. first end

Material MATT:

steel comp 303

Material Document And Classification MDCL:

66 fed std single material response

Surface Treatment SFTT:

passivate

Style Designator STYL:

protruding hubs

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:

181-917

Cage Code:

90073

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

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:

STYLE DESIGNATOR PROTRUDING HUBS style nsn 3020-00-937-6451

Definition Definition of approved item name (AIN): "GEAR,ANTIBACKLASH,SPUR"

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.

3020-00-937-6451 Material 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. A one position code that identifies a hazardous item.

PMIC: Precious Metal Indicator Code. A one position code which 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.