4820-01-225-4259

Find complete technical information, availability, and procurement data for: 4820-01-225-4259
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-225-4259

Item Name Code

22113

Assigment Date

02/02/1986 (40 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.

0.750 nominal seat angle in deg, 3a single threaded portion thread class, 20 single threaded portion thread quantity per inch, 1.812 inches single threaded portion nominal thread size, 0.266 inches nominal single threaded portion thread length

Product Characteristics

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

Thread Class: 3a single threaded portion
Thread Length: 0.266 inches nominal single threaded portion
Seat Angle In Deg: 0.750 nominal
Thread Quantity Per Inch: 20 single threaded portion
Nominal Thread Size: 1.812 inches single threaded portion
Seating Surface Shape: angular
Criticality Code Justification: zzzy
Material: nickel alloy overall
Thread Series Designator: un single threaded portion
Reference Number Differentiating Characteristics: material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications

FAQs

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

What is the FSCG of the NSN 4820-01-225-4259?

The FSCG of the NSN 4820-01-225-4259 is 4820

Does the NSN 4820-01-225-4259 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-225-4259 require demilitarization?

Usml or ccl military items - demil required. Item managers,, equipment specialists, or product specialists must furnish special demilinstructions. (note 3).

Does NSN 4820-01-225-4259 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-225-4259 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 4820-01-225-4259 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sun, Feb 2, 1986