MDD-44T-16S-40-A

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-197-6861

Item Name Code

16996

Assigment Date

12/24/1984 (41 years ago)

An item consisting of one or more definite lengths of straight or formed, flexible or rigid, prefabricated hollow tubing of conductive material. The tubing has a predetermined cross section and is designed to guide or conduct high frequency electromagnetic energy through its interior. One or more ends are terminated. May include common mounting of a switch, wave guide, a dummy load, electrical and other components such as waveguide section, cable terminal chamber and the like. Excludes:coupler,rotary,radio frequency; coupler, directional; adapter,waveguide; and tuner, waveguide.

threaded internal pipe first end connection type, right-hand first end thread direction, 1.000 inches first end nominal pipe size accommodated, plain first end style designator, "straight thru w/ offset give "adql" only when both ends flanged" body style

Product Characteristics

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

Body Style: "straight thru w/ offset give "adql" only when both ends flanged"
First End Connection Type: threaded internal pipe
First End Style Designator: plain
First End Nominal Pipe Size Accommodated: 1.000 inches
First End Thread Direction: right-hand
Second End Relationship With First End: identical
Offset Distance: 1.118 inches nominal
Flow Control Device: piston, spring loaded
End Connection Quantity: 2
Adjustable Pressure Range: +1000.0 to 4000.0 pounds per square inch
Valve Discharge Flow Rate: 3.0 gallons per minute
Temp Adjustability: not adjustable
Temp Control Device Type: fusible
Material: aluminum body

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
MDD-44T-16S-40-A	Pressure and Temper Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-197-6861?

The FSCG of the NSN 4820-01-197-6861 is 4820

Does the NSN 4820-01-197-6861 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-197-6861 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 4820-01-197-6861 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-197-6861 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 4820-01-197-6861 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Mon, Dec 24, 1984