Spur Antibacklash Gear

NSN: 3020-01-031-3872 | Model: 98430010W

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.

NSN Properties and Flags

NATO Stock Number

3020-01-031-3872

DEMIL

Attachment Method

Clamp

Pitch Diameter

2.9688 inches

Teeth Quantity

190

Bore Style

Plain both ends

Outside Diameter

3.0000 inches

Tooth Form

Standard

Pressure Angle

20.0000 degrees

Distance Between Body Face And Protruding Hub End

0.283 inches first end

Face Width

0.104 inches

Bore Diameter

0.250 inches both ends

Hub Style Designator

Split first end

Hub Diameter

0.312 inches first end

Clamping Surface Length

0.140 inches first end

Precision Classification

Quality number 10

Material

Stainless steel

Surface Treatment

Passivate

Surface Treatment Specification

Mil-std-171, finish no. 5.4.1 military specification single treatment response

Style Designator

Protruding hub

Recent Solicitations

Solicitation	Return by Date	Buyer Code	Quantity
SPE7L519Q0117	2019-06-04	PLCL4	275 EA
SPE7L719Q0284	2019-03-05	PLCLC	371 EA
SPE7L719Q0230	2019-01-31	PLCLC	371 EA
SPE7L218T3766	2018-08-23	PLCLD	148 EA
SPE7L417T0549	2016-11-18	PMCMY	11 EA

Inventory Check

The last inventory check on this NSN was done on 07/06/2023. Due to rapid changes in inventory this may not be the current stock qty.

New: 1
New Surplus: 1

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 3020-01-031-3872 Datasheet

Supply Class (FSC):

Transmission Chain Sprockets Pulleys Gears

Cross Reference:

98430010W
901048-1C
K901048-1C
901048

Cage Codes:

Westfield Precision Products Inc (CAGE 53712)
Raytheon Company (CAGE 82577)
Kosmo Gears (CAGE 22371)

Schedule B & Trade:

Schedule B: 8483409000 (NAICS 333612)

Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately
SITC: 74840

Gears and gearing; ball screws; gear boxes and other speed changers (including torque converters)
End Use: 21180

Industrial machines, other

Identification:

HMIC

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

PMIC

U - Precious metal content is unknown

CRITL

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

Freight Information:

NMFC:

197339 - Wheels cog/gear/pinion i/s
WCC:

593 - Motors and parts, (machinery and parts),(less than 35 feet)
SHC:

9 - Other or no special handling required (sh)
ADC:

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
LTL:

R - 65.0
ACC:

V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
D
Quantity per pack
1
Unit of Measure
Ea
Shelf Life
N/A
Classification Control
U
MGMT_CTL
J2200x-
Repariability
This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $2,140.02 to $3,566.70..
Does NSN 3020-01-031-3872 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Army, Department Of The Air Force, Department Of The Navy, Israel, and Republic Of Korea
What is the NIIN of NSN 3020-01-031-3872?
010313872 or 01-031-3872
Does NSN 3020-01-031-3872 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 3020-01-031-3872?
Solicitation SPE7L519Q0117 for qty 275 on 05/22/2019
When was this national stock number assigned to the federal catalog?
Nov 22, 1976