R-5250 ITEM 21

View detailed technical data, stock status, and sourcing information for: R-5250 ITEM 21

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R-5250 ITEM 21
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-01-330-3579
Item Name Code
22113
Assigment Date
12/03/1990 (35 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.

4820-01-330-3579, valve seat

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
R-3908 Valve Seat
R-5250 ITEM 21 Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-330-3579?
The FSCG of the NSN 4820-01-330-3579 is 4820
Does the NSN 4820-01-330-3579 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-01-330-3579 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 4820-01-330-3579 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-330-3579 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 4820-01-330-3579 was assigned to the Federal Catalog?
It was assigned 35 years ago, on Mon, Dec 3, 1990

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