Spur Antibacklash Gear
131321-1
(NSN) National Stock Number
3020-00-196-2104
Federal Supply Classification
3020 Gears, Pulleys, Sprockets and Transmission Chain
Item Name Code
26668
Schedule B Code
8483409000
Summary
Mounting hole attachment method, 4.0000 inches nominal pitch diameter, 20 teeth quantity, plain both ends bore style, unc transversely through hub, first end mounting hole thread series designator, 30.0 rockwell c minimum overall and 34.0 rockwell c maximum overall hardness rating
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 1 | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | AX |
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
4.0000 inches nominal
Details
A measurement indicating the diameter-pitch per specific measurement scale of the item.Teeth Quantity
20
Details
The number of teeth included on the item.Bore Style
plain both ends
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the bore.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.Hardness Rating
30.0 rockwell c minimum overall and 34.0 rockwell c maximum overall
Details
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.Mounting Hole Nominal Thread Size
0.164 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
1 threaded transversely through hub, first end
Details
Indicates the type and number of mounting holes provided on the item.Nominal Outside Diameter
4.495 inches
Details
The nominal length of a straight line which passes through the center of an item,and terminates at the outside circumference.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
0.562 inches first end
Details
The nominal distance between the body face and the protruding hub end.Face Nominal Width
0.250 inches
Details
A measurement taken at right angles to the length of the face,in distinction from thickness.Bore Nominal Diameter
0.375 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
0.503 inches first end
Details
The nominal length of a straight line which passes through the center of a hub,and terminates at the circumference.Material
steel comp 416 body
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
aisi 416/sae 51416 fed std 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.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 |
|---|---|---|---|
| 64910 | - | P | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 593 | Z | 9 |
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Manufacturer
L3HARRIS TECHNOLOGIES, INC DIV SPACE & AIRBORNE SYSTEMS
CAGE: 24930
VAN NUYS
, CA
, 91406-2027
UNITED STATES
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FAQs
Frequently asked questions for NSN 3020-00-196-2104
What is the NIIN of the NSN 3020-00-196-2104?
The National Item Identification Number (NIIN) of the NSN 3020-00-196-2104 is 00-196-2104
When the NSN 3020-00-196-2104 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Wed, Jun 17, 1970
Does the NSN 3020-00-196-2104 contain any precious metals?
Type/content is unknown
Does the NSN 3020-00-196-2104 contain any hazardous material?
No data in HMIRS
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