B7458-001-128

View detailed technical data, stock status, and sourcing information for: B7458-001-128
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-633-6983

Item Name Code

35224

Assigment Date

01/01/1963 (63 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.

4.465 inches nominal flange diameter, steel corrosion resisting material, poppet style designator, 3.750 inches nominal overall height, 4.468 inches nominal shank diameter

Product Characteristics

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

Shank Diameter: 4.468 inches nominal
Flange Diameter: 4.465 inches nominal
Overall Height: 3.750 inches nominal
Material: steel corrosion resisting
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
B7458-001-128	Valve Disk

FAQs

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

What is the FSCG of the NSN 4820-00-633-6983?

The FSCG of the NSN 4820-00-633-6983 is 4820

Does the NSN 4820-00-633-6983 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-633-6983 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 4820-00-633-6983 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-633-6983 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 4820-00-633-6983 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963