T289

View detailed technical data, stock status, and sourcing information for: T289
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-282-0501

Item Name Code

01869

Assigment Date

01/01/1961 (65 years ago)

0.240 inches minimum and 0.260 inches maximum internal straight key width, 0.302 inches minimum and 0.322 inches maximum external straight key length, 1.615 inches minimum and 1.635 inches maximum hole diameter, 2.052 inches minimum and 2.072 inches maximum outside diameter, 0.302 inches minimum and 0.322 inches maximum external straight key width

Product Characteristics

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

Hole Diameter: 1.615 inches minimum and 1.635 inches maximum
Outside Diameter: 2.052 inches minimum and 2.072 inches maximum
External Straight Key Length: 0.302 inches minimum and 0.322 inches maximum
External Straight Key Width: 0.302 inches minimum and 0.322 inches maximum
Internal Straight Key Width: 0.240 inches minimum and 0.260 inches maximum
Distance From Centerline To Top Of Internal Key: 0.53125 inches nominal
Overall Distance Including Keys: 2.365 inches minimum and 2.385 inches maximum
External Key Quantity: 2
Internal Key Quantity: 1
Material Thickness: 0.055 inches minimum and 0.075 inches maximum
Material: steel overall
Style Designator: key

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2520-00-363-6525	No Name Available	01/01/1963

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
T289	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-00-282-0501?

The FSCG of the NSN 5310-00-282-0501 is 5310

Does the NSN 5310-00-282-0501 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-282-0501 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 5310-00-282-0501 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-282-0501 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 5310-00-282-0501 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961