4820-01-490-6857

Find complete technical information, availability, and procurement data for: 4820-01-490-6857
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-490-6857

Item Name Code

05489

Assigment Date

10/04/2001 (24 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

manual valve operation method, 4.000 inches all ends nominal pipe size accommodated, nimitz class cvn end item identification, copper alloy 958 body material, copper alloy 958 flow control device material

Product Characteristics

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

Nominal Pipe Size Accommodated: 4.000 inches all ends
End Item Identification: nimitz class cvn
Valve Operation Method: manual
Material: copper alloy 958 body
Material: copper alloy 958 flow control device
Material: copper alloy 958 seat
Material: nickel alloy stem
Style Designator: straight thru

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
1KW04PN2	Butterfly Valve
D30000-4-01	Butterfly Valve
D30000-4-01 ASSY 1KW04PN2	Butterfly Valve

FAQs

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

What is the FSCG of the NSN 4820-01-490-6857?

The FSCG of the NSN 4820-01-490-6857 is 4820

Does NSN 4820-01-490-6857 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 4820-01-490-6857 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-490-6857 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 4820-01-490-6857 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Thu, Oct 4, 2001