Model: 6631-3-8S2-1.5

Restrictor Check Valve

Properties:

Thread Direction

Right-hand all ends

Flow Control Device

Piston

Disk Loading Method

Spring

Maximum Operating Temp

225.0 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

0.375 inches all ends

Material

Steel body

Material

Stainless steel flow control device

Media For Which Designed

Oil, hydraulic single response

Style Designator

Straight thru

Thread Series Designator

Npt all ends

NSN

4820-01-027-3590

Part Number

6631-3-8S2-1.5

Description

Valve,restrictor Check

CAGE

86768

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

Part 6631-3-8S2-1.5 NSN 4820-01-027-3590

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

20520

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

2.0000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

594

TCC:

SHC:

ACC:

Equipment for Aircraft

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Schedule B and Export

Schedule B: 8481302090
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of steel