Model: 404B-1

Check Valve

Properties:

Thread Direction

Right-hand all ends

Flow Control Device

Disk

Maximum Operating Temp

300.0 degrees fahrenheit single response

Connection Style

Plain, optional end (pipe) all ends

Valve Operation Method

Automatic

Connection Type

Threaded internal pipe all ends

Mounting Position

Horizontal or vertical

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.125 inches all ends

Opening Pressure Setting

2.0 pounds per square inch

Material

Copper alloy body

Media For Which Designed

Water, fresh 2nd response

Media For Which Designed

Air 1st response

Style Designator

Straight thru

Thread Series Designator

Nptf all ends

NSN

4820-01-373-0078

Part Number

404B-1

Description

Valve,check

CAGE

96948

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.

Part 404B-1 NSN 4820-01-373-0078

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05487

FIIG:

A530B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8481301090
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over