Model: 6534C91-1

Check Valve

Special Features:

Weapon system essential

Properties:

Thread Class

2b 2nd end

Thread Direction

Right-hand 2nd end

Flow Control Device

Disk

End Application

Alre; ticonderoga class cg-47; arleigh burke class ddg

Connection Style

Plain (pipe) 1st end

Connection Style

Plain, optional end (pipe) 2nd end

Valve Operation Method

Automatic

Connection Type

Threaded external pipe 1st end

Connection Type

Threaded internal tube 2nd end

Mounting Position

Horizontal or vertical

Maximum Operating Pressure

5500.0 pounds per square inch single response

Thread Size

0.500 inches 1st end

Thread Size

0.750 inches 2nd end

Criticality Code Justification

Feat

Opening Pressure Setting

15.0 pounds per square inch

Outside Diameter Tube Accommodated

0.500 inches 2nd end

Material

Steel body

Media For Which Designed

Fuel/oil, hydrocarbon single response

Style Designator

Straight thru

Thread Series Designator

Unf 2nd end

NSN

4820-01-340-5741

Part Number

6534C91-1

Description

Valve,check

CAGE

80020

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 6534C91-1 NSN 4820-01-340-5741

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