75321-6

View detailed technical data, stock status, and sourcing information for: 75321-6
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 75321-6 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

4820-00-097-8171

Item Name Code

05488

Assigment Date

05/24/1968 (58 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.

integral bonnet attachment method, stem flow control device, right-hand 2nd end thread direction, inside screw bonnet type, right-hand 1st end 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 Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: stem
Bonnet Type: inside screw
Bonnet Attachment Method: integral
Disk Loading Method: spring
Connection Style: plain,optional end(pipe) 2nd end
Connection Style: plain,optional end(pipe) 1st end
Valve Operation Method: automatic
Connection Type: threaded internal pipe 1st end
Connection Type: threaded internal pipe 2nd end
Adjustable Pressure Range: +300.0 to 1500.0 pounds per square inch
Maximum Operating Pressure: 1500.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 2nd end
Nominal Thread Size: 0.500 inches 1st end
Material: steel comp 303 overall
Material Document And Classification: qq-s-764,type303-canceled fed spec single material response overall
Style Designator: angle
Thread Series Designator: npt 2nd end
Thread Series Designator: npt 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
75321-6	Safety Relief Valve
75321-61	Safety Relief Valve
871316	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-097-8171?

The FSCG of the NSN 4820-00-097-8171 is 4820

Does the NSN 4820-00-097-8171 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-097-8171 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 4820-00-097-8171 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-097-8171 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 4820-00-097-8171 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, May 24, 1968