658697

View detailed technical data, stock status, and sourcing information for: 658697
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3020 Gears, Pulleys, Sprockets and Transmission Chain

National Stock Number

3020-00-938-4450

Item Name Code

26668

Assigment Date

03/15/1967 (59 years ago)

2 countersunk and 1 plain transversely through hub, first end mounting hole type and quantity, 270 teeth quantity, plain both ends bore style, 1.1250 inches nominal pitch diameter, mounting hole 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: mounting hole
Pitch Diameter: 1.1250 inches nominal
Teeth Quantity: 270
Bore Style: plain both ends
Mounting Hole Type And Quantity: 2 countersunk and 1 plain transversely through hub, first end
Nominal Outside Diameter: 1.140 inches
Nominal Overall Length: 0.315 inches
Tooth Form: standard
Pressure Angle: 20.0000 degrees
Nominal Distance Between Body Face And Protruding Hub End: 0.030 inches second end
Face Nominal Width: 0.101 inches
Bore Nominal Diameter: 0.120 inches both ends
Hub Style Designator: split first end
Hub Style Designator: plain second end
Hub Nominal Diameter: 0.145 inches both ends
Clamping Surface Nominal Length: 0.140 inches first end
Mounting Hole Nominal Diameter: 0.046 inches transversely through hub, first end
Material: aluminum alloy 6061 overall
Material Document And Classification: qq-a-225/8,t651 fed spec single material response overall
Style Designator: peripheral face, hubless

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
658697	Spur Antibacklash Gear

FAQs

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

What is the FSCG of the NSN 3020-00-938-4450?

The FSCG of the NSN 3020-00-938-4450 is 3020

Does the NSN 3020-00-938-4450 have a Schedule B code assigned?

Yes, the Schedule B code is 8483409000

Does NSN 3020-00-938-4450 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 3020-00-938-4450 contain precious materials?

Item does not contain precious metal.

Does NSN 3020-00-938-4450 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 3020-00-938-4450 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Mar 15, 1967