4820-00-903-3755

Find complete technical information, availability, and procurement data for: 4820-00-903-3755
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-903-3755

Item Name Code

05487

Assigment Date

01/01/1960 (66 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

poppet flow control device, 3a 1st end thread class, spring disk loading method, 450.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction

Product Characteristics

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

Thread Class: 3a 1st end
Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 450.0 fahrenheit single response
Connection Style: flareless all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.562 inches all ends
Seat Angle: 12.0 degrees 1st end
Material: steel corrosion resisting body
Media For Which Designed: hydraulic fluid, petroleum base single response
Style Designator: straight thru
Test Data Document: "81349-mil-v-25675 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Thread Series Designator: unf all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-158-1097	No Name Available	11/01/1980
4820-00-839-8725	No Name Available	07/01/1982
4820-01-004-6445	No Name Available	01/01/1980

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
1112-589970	Check Valve
2C4360	Check Valve
417-6-SS-5	Check Valve
417-6SS	Check Valve
417-6SS-0062	Check Valve
417-6SS-0102	Check Valve
417-6SS5	Check Valve
417-6SS5-0100	Check Valve
417-6SS5-0106	Check Valve
4820PL1660222	Check Valve
513-50032	Check Valve
98644-6	Check Valve
J417A-6SS-5	Check Valve
M25675-6	Check Valve
MS24423-6	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-903-3755?

The FSCG of the NSN 4820-00-903-3755 is 4820

Does the NSN 4820-00-903-3755 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-903-3755 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 4820-00-903-3755 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-903-3755 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 4820-00-903-3755 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960