1694-3

View detailed technical data, stock status, and sourcing information for: 1694-3
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 1694-3 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

4820-00-155-5671

Item Name Code

05488

Assigment Date

10/24/1971 (54 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.

3a 1st end thread class, 2.0 gallons per minute valve discharge flow rate, automatic valve operation method, right-hand 1st end thread direction, spring disk loading method

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 1st end
Disk Loading Method: spring
Valve Discharge Flow Rate: 2.0 gallons per minute
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Features Provided: pressure tight outlet side
Thread Quantity Per Inch: 16 1st end
Maximum Operating Pressure: 3500.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches 1st end
Opening Pressure Setting: 2000.0 pounds per square inch
Media For Which Designed: hydraulic fluid, petroleum base single response
Thread Series Designator: unjf 1st end

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
1694-3	Safety Relief Valve
2-43922-3	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-155-5671?

The FSCG of the NSN 4820-00-155-5671 is 4820

Does the NSN 4820-00-155-5671 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-155-5671 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 4820-00-155-5671 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-155-5671 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 4820-00-155-5671 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sun, Oct 24, 1971