4820-01-254-3808

Find complete technical information, availability, and procurement data for: 4820-01-254-3808
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-254-3808

Item Name Code

05487

Assigment Date

05/05/1987 (39 years ago)

An item designed to pass frequencies within a specified range (band) and to suppress frequencies outside the range (band). Excludes:a single inductance, or a single capacitance, or a single resistance. See coil (as modified); reactor; capacitor (as modified); and resistor (as modified).

plain, optional end (pipe) all ends connection style, automatic valve operation method, 450.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction, 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.

Thread Direction: right-hand all ends
Flow Control Device: disk
Maximum Operating Temp: 450.0 fahrenheit single response
Connection Style: plain, optional end (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 125.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches all ends
Material: copper alloy 836 body
Material: copper alloy 836 flow control device
Material: plastic polytetrafluoroethylene seat
Material Document And Classification: astm b62 assn std single material response flow control device
Material Document And Classification: astm b62 assn std single material response body
Material Document And Classification: mss sp-80 mil spec single material response seat
Media For Which Designed: steam single response
Style Designator: straight thru
Supplementary Features: ref data fed spec ww-v-51,class a,type 4 and mms sp-80
Thread Series Designator: nptf all ends
Specification/Standard Data: 98437-33s3-101 manufacturers source control

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
33S3-101	Check Valve
5001-43	Check Valve
T-413-5	Check Valve
T-413-Y-1/4 FPT	Check Valve
T-413-Y-5	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-254-3808?

The FSCG of the NSN 4820-01-254-3808 is 4820

Does the NSN 4820-01-254-3808 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-254-3808 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 4820-01-254-3808 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-254-3808 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 4820-01-254-3808 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Tue, May 5, 1987