Model: 1828AS179

Stop-check Valve

Special Features:

Clean and package for oxygen service per astm g93

Properties:

Thread Class

3a all ends

Thread Direction

Right-hand all ends

Bonnet Type

Inside screw

Bonnet Attachment Method

Threaded

Maximum Operating Temp

125.0 degrees fahrenheit single response

End Application

Oxygen servicing unit a/u26u-1, ground support equipment for the f/a-18 hornet aircraft

Connection Style

External seat for gasket seal (boss) 1st end

Connection Style

Flared (tube) 2nd end

Valve Operation Method

Manual

Connection Type

Threaded external boss 1st end

Connection Type

Threaded external tube 2nd end

Mounting Position

Vertical

Maximum Operating Pressure

2640.0 pounds per square inch single response

Thread Size

0.437 inches 1st end

Thread Size

0.500 inches 2nd end

Seat Angle

37.0 degrees all ends

Criticality Code Justification

Feat

Material

Copper alloy body

Media For Which Designed

Oxygen, gaseous single response

Style Designator

Straight thru

Thread Series Designator

Unf all ends

NSN

4820-01-397-5780

Part Number

1828AS179

Description

Valve,stop-check

CAGE

30003

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

Part 1828AS179 NSN 4820-01-397-5780

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05486

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:

0.9000lbs

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:

127200

UFC:

64480

LTL:

85.0

LCL:

WCC:

593

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