20521-8

View detailed technical data, stock status, and sourcing information for: 20521-8
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5315 Pins, Machine Keys and Nails

National Stock Number

5315-00-616-5515

Item Name Code

02380

Assigment Date

01/01/1961 (65 years ago)

An item in the form of a segment of a disk, which may have a flat bottom, with or without projecting shoulders, designed to fit into a keyway in an axle or shaft, and into a matching slot in the hub or boss of a wheel, gear or pulley.

0.198 inches minimum and 0.203 inches maximum key height, 40.0 rockwell c minimum and 50.0 rockwell c maximum overall hardness rating, 0.0938 inches minimum and 0.0948 inches maximum thickness, 0.490 inches minimum and 0.500 inches maximum circle diameter, woodruff 2 key size designation

Product Characteristics

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

Circle Diameter: 0.490 inches minimum and 0.500 inches maximum
Thickness: 0.0938 inches minimum and 0.0948 inches maximum
Key Size Designation: woodruff 2
Key Height: 0.198 inches minimum and 0.203 inches maximum
Hardness Rating: 40.0 rockwell c minimum and 50.0 rockwell c maximum overall
Shear Strength: 100000 single pounds per square inch
Starting Edge Shape: straight
Material: steel comp 2330 or steel comp 4130 or steel comp 8630 overall
Style Designator: round bottom

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5315-00-010-3904	No Name Available	07/01/1976
5315-00-012-4542	No Name Available	01/01/1963
5315-00-230-6251	No Name Available	05/01/1977
5315-00-252-5965	No Name Available	10/01/1983
5315-00-272-6674	Woodruff Key	07/01/2025
5315-00-445-1137	No Name Available	10/01/1983
5315-00-606-7089	No Name Available	12/01/1975
5315-00-689-3801	No Name Available	09/01/1995
5315-00-853-8981	No Name Available	06/04/2008

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
1-01164-3200	Woodruff Key
1179A	Woodruff Key
124542	Woodruff Key
17896R	Woodruff Key
2003-2	Woodruff Key
20521-8	Woodruff Key
5315006165515	Woodruff Key
5388-3	Woodruff Key
901326	Woodruff Key
917014	Woodruff Key
919B005-1	Woodruff Key
AN280H304	Woodruff Key
ERNF245	Woodruff Key
H PH-1164	Woodruff Key
KY11-3	Woodruff Key
MS35756-5	Woodruff Key
PC103904	Woodruff Key

FAQs

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

What is the FSCG of the NSN 5315-00-616-5515?

The FSCG of the NSN 5315-00-616-5515 is 5315

Does the NSN 5315-00-616-5515 have a Schedule B code assigned?

Yes, the Schedule B code is 8301600000

Does NSN 5315-00-616-5515 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 5315-00-616-5515 contain precious materials?

Item does not contain precious metal.

Does NSN 5315-00-616-5515 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 5315-00-616-5515 was assigned to the Federal Catalog?

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