Spur Antibacklash Gear
10128780-2
(NSN) National Stock Number
3020-00-019-0174
Federal Supply Classification
3020 Gears, Pulleys, Sprockets and Transmission Chain
Item Name Code
26668
Schedule B Code
8483409000
Summary
Mounting hole attachment method, 1.3541 inches nominal pitch diameter, 130 teeth quantity, unc transversely through hub, first end mounting hole thread series designator, 40 transversely through hub, first end mounting hole thread quantity per inch, 0.112 inches transversely through hub, first end mounting hole nominal thread size
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 1 | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | BD |
Identification
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.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 26668 | A27300 | - | 1 |
Specifications
Attachment Method
mounting hole
Details
The means used to attach the item.Pitch Diameter
1.3541 inches nominal
Details
A measurement indicating the diameter-pitch per specific measurement scale of the item.Teeth Quantity
130
Details
The number of teeth included on the item.Mounting Hole Thread Series Designator
unc transversely through hub, first end
Details
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for the specific diameter of a threaded mounting hole.Mounting Hole Thread Quantity Per Inch
40 transversely through hub, first end
Details
The number of mounting hole threads per linear inch measured on a line parallel to the thread axis.Mounting Hole Nominal Thread Size
0.112 inches transversely through hub, first end
Details
A designation that is used for the purpose of general identification of the mounting hole thread.Mounting Hole Type And Quantity
2 threaded transversely through hub, first end
Details
Indicates the type and number of mounting holes provided on the item.Nominal Outside Diameter
1.374 inches
Details
The nominal length of a straight line which passes through the center of an item,and terminates at the outside circumference.Nominal Overall Length
0.375 inches
Details
The nominal dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.Tooth Form
standard
Details
An indication as to whether the teeth are a standard depth or modified to a shorter depth.Pressure Angle
20.0000 degrees
Details
The measurement of the pressure angle on the item.Nominal Distance Between Body Face And Protruding Hub End
0.250 inches first end
Details
The nominal distance between the body face and the protruding hub end.Face Nominal Width
0.125 inches
Details
A measurement taken at right angles to the length of the face,in distinction from thickness.Bore Nominal Diameter
0.120 inches both ends
Details
The nominal length of a straight line which passes through the center of a bore,and terminates at the circumference.Hub Style Designator
pinned first end
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the hub.Hub Nominal Diameter
0.375 inches first end
Details
The nominal length of a straight line which passes through the center of a hub,and terminates at the circumference.Precision Classification
quality number 12
Details
The quality designation of an item as determined by industry,association,or manufacturer standards.Material
steel comp 303 overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
mil-s-7720,comp 303 mil spec single material response overall
Details
The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.Surface Treatment
passivate overall
Details
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.Surface Treatment Document And Classification
mil-f-14072 mil spec single treatment response overall
Details
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.Style Designator
protruding hub
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | U | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 00000 | - | W | S |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 593 | Z | 9 |
Certified Supplier
Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.
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Manufacturer
US ARMY AVIATION AND MISSILE COMMAND
CAGE: 18876
REDSTONE CENTRAL
, AL
, 35898-5000
UNITED STATES
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FAQs
Frequently asked questions for NSN 3020-00-019-0174
What is the NIIN of the NSN 3020-00-019-0174?
The National Item Identification Number (NIIN) of the NSN 3020-00-019-0174 is 00-019-0174
When the NSN 3020-00-019-0174 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Sun, Jan 1, 1961
Does the NSN 3020-00-019-0174 contain any precious metals?
Type/content is unknown
Does the NSN 3020-00-019-0174 contain any hazardous material?
No data in HMIRS
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