139C6729

View detailed technical data, stock status, and sourcing information for: 139C6729

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139C6729
Federal Supply Group
Mechanical Power Transmission Equipment
National Stock Number
3020-00-128-1180
Item Name Code
05463
Assigment Date
01/12/1973 (53 years ago)

A gear in the form of a frustum of a cone, with straight, skewed, or curved teeth, cut on the external face. See also gear, antibacklash, bevel.

2.0833 inches nominal pitch diameter, 25 teeth quantity, involute spline both ends bore style, 15 both ends spline quantity, plain, solid body style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Body Style
plain, solid
Spline Quantity
15 both ends
Pitch Diameter
2.0833 inches nominal
Teeth Quantity
25
Bore Style
involute spline both ends
Spline Pitch Diameter
0.4688 inches nominal both ends
Hardness Rating
33.0 rockwell c minimum and 38.0 rockwell c maximum overall
Nominal Outside Diameter
2.159 inches
Nominal Overall Length
0.860 inches
Teeth Type
straight
Pressure Angle
20.0000 degrees
Pitch Angle
54.2467 degrees
Nominal Distance Between Body Face And Protruding Hub End
0.260 inches second end
Face Nominal Width
0.390 inches
Bore Nominal Diameter
0.542 inches both ends
Hub Style Designator
pinned second end
Hub Nominal Diameter
0.820 inches second end
Precision Classification
quality number 8
Material
steel comp 4140 overall
Material Document And Classification
qq-s-624 fed spec single material response overall
Style Designator
peripheral face, back hub protruding

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
139C6729 Bevel Gear

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3020-00-128-1180?
The FSCG of the NSN 3020-00-128-1180 is 3020
Does the NSN 3020-00-128-1180 have a Schedule B code assigned?
Yes, the Schedule B code is 8483409000
Does NSN 3020-00-128-1180 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 3020-00-128-1180 contain precious materials?
Precious metal content is unknown
Does NSN 3020-00-128-1180 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 3020-00-128-1180 was assigned to the Federal Catalog?
It was assigned 53 years ago, on Fri, Jan 12, 1973

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