Check Valve NSN 4820-01-399-7921

Item Description

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

NSN: 4820-01-399-7921

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Features and Characteristics

Flow Control Device

Disk

Disk Loading Method

Weight

Bolt Hole Quantity

10 all ends

Maximum Operating Temp

200.0 degrees fahrenheit single response

Valve Operation Method

Manual

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Mounting Position

Horizontal

Valve Size

4.000 inches

Maximum Operating Pressure

1200.0 pounds per square inch single response

Criticality Code Justification

Zzzy

Outside Diameter

8.690 inches all ends

Face To Face Distance

14.500 inches

Thickness

1.440 inches all ends

Bolt Hole Diameter

0.690 inches all ends

Bolt Circle Diameter

7.188 inches all ends

Flange Face Design

Plain all ends

Material

Copper alloy 964 flow control device

Material Specification

Mil-c-20159, uns c96400 military specification single material response flow control device

Media For Which Designed

Water-oil-gas single response

Style Designator

Straight through flanged ends

Reference Number Differentiating Characteristics

Quality control in accordance with navships 0948-045-7010 material identification and control instruction for subsafe items

FSC

4820 Nonpowered Valves

NIIN

013997921

NSN

4820013997921

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

DS-B-90301

Cage Code:

15187

Status:

MSDS:

Part Number:

211029333

Cage Code:

53711

Status:

MSDS:

Part Number:

211029333SS

Cage Code:

03950

Status:

MSDS:

Part Number:

DS-B-90301SS

Cage Code:

03950

Status:

MSDS:

Part Number:

211029333L1

Cage Code:

03950

Status:

MSDS:

Part Number:

DS-B-90301L1

Cage Code:

03950

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8481301090
NAICS: 332911
SITC: 74730
Description: Check valves of copper having a pressure rating of 850 kpa or over
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-399-7921

What are the manufacturers of nsn 4820013997921?

Does this nsn 4820013997921 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820013997921
A valve permitting flow in one direction only. it does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. it may be inline or cartridge (manifold) design.

Does nsn 4820013997921 contain any precious metals?
No precious metal content.

Does nsn 4820013997921 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820013997921?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

05487

FIIG:

A530B0

App. Key:

Cond. Code:

Status:

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Certificate of Conformance
Quality Inspected Parts
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