3020-01-425-8212

Spur Antibacklash Gear email this page

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Reference images of this national stock number
Reference of NSN 3020-01-425-8212 Reference of NSN 3020-01-425-8212

Model or part number: 12373389-2

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pdf NSN 3020-01-425-8212 Datasheet

MRC:
The means used to attach the item.ABSX
Attachment Method:
Slot
MRC:
The national stock number or the identification information of the end equipment for which the item is a part.AGAV
End Application:
2320-01-123-1610
MRC:
A measurement indicating the diameter-pitch per specific measurement scale of the item.AGJS
Pitch Diameter:
1.7500 inches
MRC:
The number of teeth included on the item.AJLA
Teeth Quantity:
84
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the bore.ANTP
Bore Style:
Plain both ends
MRC:
The nominal length of a straight line which passes through the center of an item,and terminates at the outside circumference.CWCD
Outside Diameter:
1.790 inches
MRC:
The measurement of the pressure angle on the item.CWPP
Pressure Angle:
20.0000 degrees
MRC:
The nominal distance between the body face and the protruding hub end.CWQL
Distance Between Body Face And Protruding Hub End:
0.221 inches second end
MRC:
A measurement taken at right angles to the length of the face,in distinction from thickness.CWRM
Face Width:
0.104 inches
MRC:
The nominal length of a straight line which passes through the center of a bore,and terminates at the circumference.CWRS
Bore Diameter:
0.250 inches both ends
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the hub.CWTR
Hub Style Designator:
Split second end
MRC:
The nominal length of a straight line which passes through the center of a hub,and terminates at the circumference.CWTX
Hub Diameter:
0.310 inches second end
MRC:
A nominal measurement of the longest dimension of a clamping surface,in distinction from width.CWWC
Clamping Surface Length:
0.221 inches second end
MRC:
The quality designation of an item as determined by industry,association,or manufacturer standards.CWWK
Precision Classification:
Accuracy grade 12
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel comp 302 spring
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Astm-a582 assn standard single material response second gear
MRC:
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.SFTT
Surface Treatment:
Passivate second gear
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.STDC
Surface Treatment Specification:
Mil-std-171 military standard single treatment response second gear
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Protruding hub
MRC:
--
NIIN:
014258212
MRC:
--
NATO Stock Number:
3020-01-425-8212
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
No
MRC:
N/A
MIL-STD
MIL-STD-171 Spec.
FIIG:
--
FIIG:
A27300
MRC:
--
INC:
26668
MRC:
--
IMM:
AX
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All Products Certified

Factory New, New Material, New Surplus, Overhauled, Serviceable, Repairable, and AS Removed / Used material will be accompanied by a Certificate of Conformance, and any other documents/trace when applicable. We have a 7 year record retention.

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Quality | ISO 9001:2015 + AS9120B

We are committed to quality and follow an AS9120 quality management system. AeroBase Group is HAZMAT certified and registered with DDTC, ITAR, and Aviation Suppliers Association (ASA). All products are 100% inspected.

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Shipping

Delivery of IN-STOCK orders ship same-day when order is placed before 2:00 PM EST.

Delivery dates for NON-STOCK items are estimates based on current backlog and are subject to confirmation at the time of order.

Parts and Components for Light Armored Vehicle NSN 2355-01-123-1610 Parts and components for this end application.

NSN Component Description
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NSN 5915-01-392-9295 Radio Frequency Interfere Filter
NSN 5998-01-393-0405 Circuit Card Assembly
NSN 2930-01-419-2559 Radiator Core
NSN 4710-01-419-6486 Metal Tube Assembly
NSN 4710-01-419-6492 Metal Tube Assembly
NSN 4710-01-420-1087 Metallic Bent Tube
NSN 2510-01-420-1672 Inseparable Rod Assembly
NSN 4720-01-420-4148 Nonmetallic Hose
NSN 2590-01-420-4270 Intercom Driver
NSN 2590-01-420-4274 Panel Control
NSN 3940-01-420-6292 Mounting Block
NSN 1240-01-420-7185 Mount Subassembly
NSN 4810-01-420-8044 Solenoid Valve Parts Kit
NSN 1005-01-421-0057 Machine Gun Breechlock Cam
NSN 2510-01-421-0615 Restraint Bar
NSN 2510-01-421-0619 Inseparable Hinge Assembly
NSN 2540-01-421-0637 Latch Strike
NSN 4710-01-421-1617 Metal Tube Assembly
NSN 6680-01-421-3689 Liquid Quantity Transmitter
NSN 1005-01-421-6789 Machine Gun Cradle
NSN 1005-01-421-8121 Machine Gun Housing
NSN 1005-01-421-8122 Electrohydraulic Drive Assembly
NSN 1005-01-421-8123 30 Mill Mechanical Drive Housing
NSN 1005-01-421-8164 Ammunition Cartridge Guide
NSN 2540-01-421-8831 Windshield Wiper Assembly
NSN 1005-01-421-9323 Barrel Support
NSN 6695-01-422-3603 Transducer
NSN 5965-01-422-4822 Dynamic Microphone
NSN 5965-01-422-4823 Electrical Headset
NSN 5998-01-422-6598 Circuit Card Assembly
NSN 5998-01-422-6599 Circuit Card Assembly
NSN 5998-01-422-6600 Circuit Card Assembly
NSN 5998-01-422-6601 Circuit Card Assembly
NSN 2510-01-422-7214 Vehicular Window Frame

Formal Definition

Government issue definition of NSN 3020-01-425-8212

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.

Packaging & Dimensions

MIL-STD codes: http://www.dla.mil/LandandMaritime/.../MILSTD2073Codes.aspx
Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
Container
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
LVL C
Container:
--
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q
LVL_C:
CUSH
MOP
CATEG.
PRES MAT
WRAP MAT
ICQ
THK
TOS
UCL
CUSH DUN:
00
MOP:
10
PKG:
16ZZ
PRES MAT:
00
WRAP MAT:
XX
ICQ:
AAA
THK:
0
TOS:
UCL:

Packaging Codes Definitions:

LVL A Code (LVL_A) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with applicable specification for shipping container.

LVL B Code (LVL_B) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with the appropriate shipping container specification.

Procedure Indicator Code (OPI) O

Options can be exercised as to specific method of preservation or dod approved packaging materials to be used. however, basic preservation method shall be retained, supplemental data shall be complied with, and unit package dimensions shall not be increased by more than one inch. equal or better protection shall be given the item and there shall be no increase in the package cost.

Special Markings Code (SPC_MKG) 00

No special marking.

Method of Preservation (MOP) 10

Physical protection.

Cushion Material (CUSH) 00

No requirement.

Preservation Material (PRES_MAT) 00

No requirement.

Import / Export

Schedule B Classification
Schedule B Number
NAIC National Association of Insurance Commissioners
End Use A classification system for U.S. exported and imported merchandise based on principal use rather than the physical characteristics of the merchandise. End-Use codes are assigned by the Bureau of Economic Analysis under the U.S. Department of Commerce.
SITC Commodity classification system defined by the United Nations.
USDA
HITECH
Schedule B:
8483409000
NAICS:
333612
End Use Class:
21180
SITC:
74840
USDA:
1
HITECH:
0

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 / National freight and handling information
NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
121870
NMF Description:
Gear/speed Increasing/reducing Mach
UFC:
64910
LTL:
77.5
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ADC:
A
ACC:
V

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) V

Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing.

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)

Manufacturers

This NSN is registered to the following cage codes.
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