4820-01-184-6567

Find complete technical information, availability, and procurement data for: 4820-01-184-6567
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-184-6567

Item Name Code

22113

Assigment Date

07/20/1984 (42 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.

2a single threaded portion thread class, 0.500 inches nominal taper minor diameter, 0.031 inches nominal taper length, 0.531 inches nominal taper major diameter, 0.500 inches nominal body inside diameter

Product Characteristics

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

Thread Class: 2a single threaded portion
Taper Length: 0.031 inches nominal
Taper Minor Diameter: 0.500 inches nominal
Taper Major Diameter: 0.531 inches nominal
Body Inside Diameter: 0.500 inches nominal
Seat Angle In Deg: 44.917 minimum and 45.083 maximum
Thread Quantity Per Inch: 16 single threaded portion
Nominal Thread Size: 1.000 inches single threaded portion
Seating Surface Shape: angular
Criticality Code Justification: zzzy
Special Features: hex flange
Material: copper alloy overall
Style Designator: threaded flanged
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

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
AA-784 PIECE 14	Valve Seat
UD 4046 VB	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-184-6567?

The FSCG of the NSN 4820-01-184-6567 is 4820

Does the NSN 4820-01-184-6567 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-184-6567 require demilitarization?

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

Does NSN 4820-01-184-6567 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-184-6567 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 4820-01-184-6567 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Fri, Jul 20, 1984