4820-01-491-9965

Find complete technical information, availability, and procurement data for: 4820-01-491-9965
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-491-9965

Item Name Code

05488

Assigment Date

11/08/2001 (24 years ago)

A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes:flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes:disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.

right-hand 1st end thread direction, 250.0 fahrenheit single response maximum operating temp, plain (screw-in cartridge) 1st end connection style, 133.0 cubic feet per minute valve discharge flow rate, poppet flow control device

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
Flow Control Device: poppet
Valve Discharge Flow Rate: 133.0 cubic feet per minute
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: plain (screw-in cartridge) 1st end
Valve Operation Method: automatic
Connection Type: threaded internal pipe 1st end
Maximum Operating Pressure: 58.5 pounds per square inch single response
Nominal Thread Size: 0.500 inches 1st end
Opening Pressure Setting: 70.0 pounds per square inch
Special Features: viton seals with plated steel internal spring; opening pressure plus/minus 3 per cent; orifice size 0.375 inch
Material: copper alloy body
Material: plastic silicone seat
Material: rubber synthetic packing
Style Designator: screw-in cartridge
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
304-065	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-491-9965?

The FSCG of the NSN 4820-01-491-9965 is 4820

Does the NSN 4820-01-491-9965 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-491-9965 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 4820-01-491-9965 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-491-9965 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 4820-01-491-9965 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Thu, Nov 8, 2001