2639678-1

View detailed technical data, stock status, and sourcing information for: 2639678-1
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5970 Electrical Insulators and Insulating Materials

National Stock Number

5970-00-143-4530

Item Name Code

18301

Assigment Date

01/10/1969 (57 years ago)

An insulator designed to fit into and reduce the effective diameter of the hole(s). It may include mounting and/or conducting hardware. For flexible bushing-type insulators that are self-retaining and consist of two facing flanges separated by a neck, see grommet, nonmetallic. Also see spacer, sleeve and bushing, sleeve. Excludes:insulation sleeving, electrical.

0.422 inches minimum and 0.452 inches maximum outside diameter, 0.031 inches nominal shank height, 0.078 inches minimum and 0.108 inches maximum overall height, 0.146 inches minimum and 0.166 inches maximum inside diameter, 0.240 inches minimum and 0.250 inches maximum shank outside diameter

Product Characteristics

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

Inside Diameter: 0.146 inches minimum and 0.166 inches maximum
Outside Diameter: 0.422 inches minimum and 0.452 inches maximum
Overall Height: 0.078 inches minimum and 0.108 inches maximum
Shank Outside Diameter: 0.240 inches minimum and 0.250 inches maximum
Shank Height: 0.031 inches nominal
Material And Location: unable to decode
Style Designator: shoulder

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5970-00-141-4288	No Name Available	07/01/1992
5970-01-017-7251	No Name Available	09/04/1991

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
2639678-1	Bushing Insulator

FAQs

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

What is the FSCG of the NSN 5970-00-143-4530?

The FSCG of the NSN 5970-00-143-4530 is 5970

Does the NSN 5970-00-143-4530 have a Schedule B code assigned?

Yes, the Schedule B code is 8546900000

Does NSN 5970-00-143-4530 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 5970-00-143-4530 contain precious materials?

Item does not contain precious metal.

Does NSN 5970-00-143-4530 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5970-00-143-4530 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Jan 10, 1969