256990-2

View detailed technical data, stock status, and sourcing information for: 256990-2
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5977 Electrical Contact Brushes and Electrodes

National Stock Number

5977-01-515-9240

Item Name Code

00313

Assigment Date

12/12/2003 (22 years ago)

A two-piece metallic item, one piece usually tubular in appearance and flanged at one end, the other piece a plain tooth or spur washer or retaining ring. It is primarily used for lining and reinforcing the edges of holes. The unflanged end is designed to be inserted through a hole and retained in place by being crimped over the plain or tooth washer or retaining ring or by clinching action between the spur washer and the flanged end. Excludes:eyelet, metallic.

4.430 inches nominal overall height, 7.500 inches nominal diameter, 7.500 inches nominal overall width, 10.250 inches nominal overall length, 28 contact ring quantity

Product Characteristics

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

Overall Length: 10.250 inches nominal
Overall Height: 4.430 inches nominal
Overall Width: 7.500 inches nominal
Diameter: 7.500 inches nominal
Contact Ring Quantity: 28
Precious Material And Location: terminals silver
Precious Material: silver

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
256990-2	Electrical Contact Ring Assembly

FAQs

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

What is the FSCG of the NSN 5977-01-515-9240?

The FSCG of the NSN 5977-01-515-9240 is 5977

Does the NSN 5977-01-515-9240 have a Schedule B code assigned?

Yes, the Schedule B code is 8545900000

Does NSN 5977-01-515-9240 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 5977-01-515-9240 contain precious materials?

Item contains silver.

Does NSN 5977-01-515-9240 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 5977-01-515-9240 was assigned to the Federal Catalog?

It was assigned 22 years ago, on Fri, Dec 12, 2003