Model: 1977621 ITEM 38

Check Valve

Properties:

Thread Class

3a 1st end

Thread Class

3b 2nd end

Thread Direction

Right-hand all ends

Flow Control Device

Disk

Maximum Operating Temp

250.0 degrees fahrenheit 1st response

Maximum Operating Temp

300.0 degrees fahrenheit 2nd response

Connection Style

Flared (tube) 1st end

Connection Style

Flare (tube) 2nd end

Valve Operation Method

Automatic

Connection Type

Threaded external tube 1st end

Connection Type

Threaded internal tube 2nd end

Mounting Position

Horizontal or vertical

Thready Qty Per Inch (tpi)

12 all ends

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

1.313 inches all ends

Seat Angle

45.0 degrees 1st end

Opening Pressure Setting

5.0 pounds per square inch

Outside Diameter Tube Accommodated

1.000 inches 2nd end

Material

Steel body

Media For Which Designed

Water, fresh 2nd response

Media For Which Designed

Air 1st response

Surface Treatment

Cadmium

Style Designator

Straight thru

Thread Series Designator

Un all ends

NSN

4820-01-325-8151

Part Number

1977621 ITEM 38

Description

Valve,check

CAGE

03956

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 1977621 ITEM 38 NSN 4820-01-325-8151

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

Freight Class: Check valves of steel