1389003

View detailed technical data, stock status, and sourcing information for: 1389003
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 1389003 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-304-6825

Item Name Code

05488

Assigment Date

07/26/1989 (37 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

right-hand all ends thread direction, -40.0 fahrenheit minimum operating temp, 3a all ends thread class, 250.0 fahrenheit single response maximum operating temp, flared (tube) all ends connection style

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 all ends
Thread Direction: right-hand all ends
Maximum Operating Temp: 250.0 fahrenheit single response
Minimum Operating Temp: -40.0 fahrenheit
Connection Style: flared (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Maximum Operating Pressure: 120.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches all ends
Seat Angle: 12.5 degrees all ends
Opening Pressure Setting: 120.0 pounds per square inch
Material: steel comp 316 body
Style Designator: straight thru note: to be used for valve bodies of one section only.
Thread Series Designator: unf all ends
Fsc Application Data: mk 92,mod 6,interim support

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
1389003	Safety Relief Valve
5159-T1-8TT-120	Safety Relief Valve
5983452	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-304-6825?

The FSCG of the NSN 4820-01-304-6825 is 4820

Does the NSN 4820-01-304-6825 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-304-6825 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 4820-01-304-6825 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-304-6825 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 4820-01-304-6825 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Wed, Jul 26, 1989