Model: 55839 ITEM 7

Check Valve

Special Features:

Next higer assembly: 55836 piping assembly v1 to cv1, b2 to cv2; 55839 piping assembly, full flow particulate assembly

Properties:

Thread Class

2b all ends

Thread Direction

Right-hand all ends

Flow Control Device

Disk

Disk Loading Method

Spring

Renewable Seat Ring Type

Pressed-in

Maximum Operating Temp

100.0 degrees fahrenheit single response

End Application

Electronic cooling water skid

Connection Style

Plain, optional end (pipe) all ends

Valve Operation Method

Automatic

Connection Type

Threaded internal tube all ends

Mounting Position

Horizontal or vertical

Thready Qty Per Inch (tpi)

18 all ends

Maximum Operating Pressure

15.0 pounds per square inch single response

Thread Size

0.750 inches all ends

Opening Pressure Setting

0.5 pounds per square inch

Outside Diameter Tube Accommodated

0.750 inches all ends

Part Name Assigned By Controlling Agency

Universal low pressure check valve

Material

Plastic polytetrafluoroethylene seat

Material

Stainless steel

Material Specification

Astm 1479 gr 316 assn standard single material response

Material Specification

Pcaf00 national specification single material response seat

Style Designator

Straight thru

Thread Series Designator

Npt all ends

NSN

4820-01-517-2823

Part Number

55839 ITEM 7

Description

Valve,check

CAGE

91161

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 55839 ITEM 7 NSN 4820-01-517-2823

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:

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:

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