Model: NS-3981

Check Valve

Properties:

Flow Control Device

Disk

Bolt Hole Quantity

8 all ends

Maximum Operating Temp

150.0 degrees fahrenheit single response

Valve Operation Method

Automatic

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Mounting Position

Horizontal

Valve Size

3.000 inches

Maximum Operating Pressure

1050.0 pounds per square inch single response

Outside Diameter

7.438 inches all ends

Face To Face Distance

11.750 inches

Thickness

1.062 inches all ends

Bolt Hole Diameter

0.687 inches all ends

Bolt Circle Diameter

5.938 inches all ends

Flange Face Design

Plain all ends

Material

Copper alloy 903

Material Specification

Qq-c-390, alloy d5/d federal specification single material response

Media For Which Designed

Water-oil-gas single response

Style Designator

Straight through flanged ends

NSN

4820-01-125-9747

Part Number

NS-3981

Description

Valve,check

CAGE

11836

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 NS-3981 NSN 4820-01-125-9747

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

85.0000lbs

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:

050855

UFC:

29290

LTL:

RATING VARIABLE

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

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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