802757

View detailed technical data, stock status, and sourcing information for: 802757
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3020 Gears, Pulleys, Sprockets and Transmission Chain

National Stock Number

3020-01-052-2845

Item Name Code

26668

Assigment Date

12/12/1977 (48 years ago)

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.

1.250 inches nominal outside diameter, 88 teeth quantity, plain both ends bore style, 1.2222 inches nominal pitch diameter, clamp attachment method

Product Characteristics

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

Attachment Method: clamp
Pitch Diameter: 1.2222 inches nominal
Teeth Quantity: 88
Bore Style: plain both ends
Nominal Outside Diameter: 1.250 inches
Tooth Form: standard
Pressure Angle: 20.0000 degrees
Nominal Distance Between Body Face And Protruding Hub End: 0.221 inches first end
Face Nominal Width: 0.104 inches
Bore Nominal Diameter: 0.090 inches both ends
Hub Style Designator: 1 step first end
End Nominal Length: 0.189 inches first end
Precision Classification: quality number 10
End Nominal Diameter: 0.187 inches first end
First Step Nominal Length: 0.032 inches first end
First Step Nominal Diameter: 0.250 inches first end
Material: aluminum alloy 2024 body
Material: steel comp 303 hub
Material Document And Classification: qq-a-225/6,t4 fed spec single material response body
Material Document And Classification: qq-s-764 fed spec single material response hub
Surface Treatment: anodize body
Surface Treatment: passivate hub
Surface Treatment Document And Classification: mil-a-8625,type 1 mil spec single treatment response body
Surface Treatment Document And Classification: qq-p-35,type 1 fed spec single treatment response hub
Style Designator: protruding hub

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
802757	Spur Antibacklash Gear
802757-2088	Spur Antibacklash Gear
ABC37-88 0.090 B	Spur Antibacklash Gear
ABC37-88 0.090 BORE	Spur Antibacklash Gear
MZ3F-88X-AP1 0.0	Spur Antibacklash Gear
MZ3F-88X-AP1 0.090 BORE	Spur Antibacklash Gear
MZ3F88XAQ10WITH0	Spur Antibacklash Gear
MZ3F88XAQ10WITH0900B	Spur Antibacklash Gear

FAQs

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

What is the FSCG of the NSN 3020-01-052-2845?

The FSCG of the NSN 3020-01-052-2845 is 3020

Does the NSN 3020-01-052-2845 have a Schedule B code assigned?

Yes, the Schedule B code is 8483409000

Does NSN 3020-01-052-2845 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 3020-01-052-2845 contain precious materials?

Precious metal content is unknown

Does NSN 3020-01-052-2845 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 3020-01-052-2845 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Mon, Dec 12, 1977