D50UU-04 1/4 INCH

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-507-7109

Item Name Code

05488

Assigment Date

05/02/2003 (23 years ago)

A resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of high resistance wire (or ribbon) either wound on an insulated form or constructed so as to be self supporting. Opposition to the flow of current is an inherent property of the resistance wire and is manifest by the heat dissipation in the resistor. Excludes:suppressor,ignition interference.

0.250 inches all ends nominal pipe size accommodated, inside spring bonnet type, bolted bonnet attachment method, 150.0 fahrenheit single response maximum operating temp, disk flow control device

Product Characteristics

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

Nominal Pipe Size Accommodated: 0.250 inches all ends
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: bolted
Maximum Operating Temp: 150.0 fahrenheit single response
End Item Identification: los angeles class ssn (688)
Connection Style: streamlined with one brazing ring all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Adjustable Pressure Range: +25.0 to 29.0 pounds per square inch
Maximum Operating Pressure: 400.0 pounds per square inch single response
Material: copper alloy body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: nickel alloy stem
Material Document And Classification: qq-n-281 fed spec single material response flow control device
Material Document And Classification: qq-n-281 fed spec single material response seat
Material Document And Classification: qq-n-281 fed spec single material response stem
Material Document And Classification: qq-c-390,alloy d4/d/ fed spec single material response body
Media For Which Designed: water-oil-gas single response
Style Designator: angle

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
BAMAA04SAA	Safety Relief Valve
D50UU-04 1/4 INCH	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-507-7109?

The FSCG of the NSN 4820-01-507-7109 is 4820

Does the NSN 4820-01-507-7109 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-507-7109 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 4820-01-507-7109 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-507-7109 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 4820-01-507-7109 was assigned to the Federal Catalog?

It was assigned 23 years ago, on Fri, May 2, 2003