H1991

View detailed technical data, stock status, and sourcing information for: H1991
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-168-3535

Item Name Code

05492

Assigment Date

12/15/1983 (42 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.

2 end connection quantity, used on amc 1974 hornet sedan special features, unthreaded external tube first end connection type, plain first end style designator, 0.625 inches nominal first end outside diameter tube accommodated

Product Characteristics

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

First End Connection Type: unthreaded external tube
First End Style Designator: plain
First End Outside Diameter Tube Accommodated: 0.625 inches nominal
End Connection Quantity: 2
Special Features: used on amc 1974 hornet sedan

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
3222290	Temperature Regulating Valve
H1991	Temperature Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-01-168-3535?

The FSCG of the NSN 4820-01-168-3535 is 4820

Does the NSN 4820-01-168-3535 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-01-168-3535 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 4820-01-168-3535 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-168-3535 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 4820-01-168-3535 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Thu, Dec 15, 1983