4820-00-891-0987

Find complete technical information, availability, and procurement data for: 4820-00-891-0987
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-891-0987

Item Name Code

05488

Assigment Date

01/18/1967 (59 years ago)

disk flow control device, 0.375 inches all ends nominal pipe size accommodated, inside spring bonnet type, right-hand all ends thread direction, threaded bonnet attachment method

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: 0.375 inches all ends
Thread Direction: right-hand all ends
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: threaded
Disk Loading Method: spring
Valve Discharge Flow Rate: 25.0 gallons per minute
Connection Style: plain,optional end(pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Mounting Facility: bulkhead
Features Provided: bonnet packing and pressure tight outlet side
Adjustable Pressure Range: +0.0 to 350.0 pounds per square inch
Maximum Operating Pressure: 300.0 pounds per square inch single response
Nominal Thread Size: 0.375 inches all ends
Material: steel body
Material: steel seat
Material: steel stem
Media For Which Designed: hydraulic fluid, mineral base single response
Surface Treatment: oxide and paint
Style Designator: angle
Thread Series Designator: nptf all ends
Furnished Items And Quantity: 1 bolt and 1 nut

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-007-2250	No Name Available	04/01/1980

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
771-583-9001	Safety Relief Valve
RA600-1	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-891-0987?

The FSCG of the NSN 4820-00-891-0987 is 4820

Does the NSN 4820-00-891-0987 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-891-0987 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 4820-00-891-0987 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-891-0987 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 4820-00-891-0987 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Jan 18, 1967