4820-01-256-0669

Find complete technical information, availability, and procurement data for: 4820-01-256-0669
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-256-0669

Item Name Code

22113

Assigment Date

05/31/1987 (39 years ago)

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes:regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

0.250 inches nominal body inside diameter, 1.125 inches nominal body outside diameter, 0.025 inches nominal overall height, rubber buna n or rubber synthetic overall material, flat seating surface shape

Product Characteristics

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

Overall Height: 0.025 inches nominal
Body Outside Diameter: 1.125 inches nominal
Body Inside Diameter: 0.250 inches nominal
Seating Surface Shape: flat
Material: rubber buna n or rubber synthetic overall
Style Designator: plain

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
12609-7	Valve Seat
12609-72	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-256-0669?

The FSCG of the NSN 4820-01-256-0669 is 4820

Does the NSN 4820-01-256-0669 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-256-0669 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 4820-01-256-0669 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-256-0669 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 4820-01-256-0669 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Sun, May 31, 1987