2640-740PC20-21

View detailed technical data, stock status, and sourcing information for: 2640-740PC20-21
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-410-2594

Item Name Code

77777

Assigment Date

08/15/1969 (56 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.

item that supports a level 1 or subsafe critical system that has undergone quality assurance during the acquisition process reference number differentiating characteristics, zzzy criticality code justification

Product Characteristics

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

Criticality Code Justification: zzzy
Reference Number Differentiating Characteristics: item that supports a level 1 or subsafe critical system that has undergone quality assurance during the acquisition process

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
2640-740PC20-21	Valve Ball and Seat
2640-740PC20-21Q3	Valve Ball and Seat
SS845-2180776PC20-21	Valve Ball and Seat
SS845-2180776PC20-21Q3	Valve Ball and Seat

FAQs

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

What is the FSCG of the NSN 4820-00-410-2594?

The FSCG of the NSN 4820-00-410-2594 is 4820

Does the NSN 4820-00-410-2594 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-410-2594 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 4820-00-410-2594 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-410-2594 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 4820-00-410-2594 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Aug 15, 1969