Model: M-8C4-1

Check Valve

Properties:

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Disk Loading Method

Spring

Connection Style

Plain, optional end (pipe) all ends

Valve Operation Method

Automatic

Connection Type

Threaded internal pipe all ends

Mounting Position

Horizontal or vertical

Thread Size

0.500 inches all ends

Criticality Code Justification

Zzzy

Opening Pressure Setting

1.0 pounds per square inch

Material

Nickel alloy body

Material

Nickel alloy flow control device

Style Designator

Straight thru

Thread Series Designator

Npt all ends

Reference Number Differentiating Characteristics

Requires special cleaning and packaging iaw mil-c-52211, for oxygen/nitrogen/hydrogen service

NSN

4820-01-246-4557

Part Number

M-8C4-1

Description

Valve,check

CAGE

02570

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 M-8C4-1 NSN 4820-01-246-4557

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:

127220

UFC:

64490

LTL:

77.5

LCL:

77.5

WCC:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8481309000
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of materials other than copper, iron or steel