4820-01-453-8020

Find complete technical information, availability, and procurement data for: 4820-01-453-8020
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-453-8020

Item Name Code

35224

Assigment Date

03/11/1998 (28 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

type 1771-t 1/4 in. relief valve;seawolf class ssn end item identification, 1.530 inches nominal overall height, 0.498 inches nominal shank diameter, 0.795 inches nominal flange diameter, poppet style designator

Product Characteristics

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

Shank Diameter: 0.498 inches nominal
Flange Diameter: 0.795 inches nominal
Overall Height: 1.530 inches nominal
End Item Identification: type 1771-t 1/4 in. relief valve;seawolf class ssn
Style Designator: poppet

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
B14545.004.000	Valve Disk
SW115 FIND 5	Valve Disk

FAQs

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

What is the FSCG of the NSN 4820-01-453-8020?

The FSCG of the NSN 4820-01-453-8020 is 4820

Does the NSN 4820-01-453-8020 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-453-8020 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 4820-01-453-8020 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-453-8020 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 4820-01-453-8020 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Wed, Mar 11, 1998