S520156301 ITEM 503

View detailed technical data, stock status, and sourcing information for: S520156301 ITEM 503
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-441-7805

Item Name Code

77777

Assigment Date

02/24/1997 (29 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.

supply class aoe end item identification, seat gasket part name assigned by controlling agency

Product Characteristics

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

End Item Identification: supply class aoe
Part Name Assigned By Controlling Agency: seat gasket

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
72537	Seat Gasket
A72537	Seat Gasket
S520156301	Seat Gasket
S520156301 ITEM 503	Seat Gasket

FAQs

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

What is the FSCG of the NSN 4820-01-441-7805?

The FSCG of the NSN 4820-01-441-7805 is 4820

Does NSN 4820-01-441-7805 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 4820-01-441-7805 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-441-7805 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 4820-01-441-7805 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Mon, Feb 24, 1997