Model: 12253779-2

Check Valve

Special Features:

Hydraulic service: oil per specification mil-l-46167; fluids at 30 plus or minus2 centistokes kinematic viscosity (138sus) between plus 100 degrees f and plus 150 degrees f that are compatible with valve components will be used for test purposes; temp range minus 65 degrees f to plus 170 degrees f; proof pressure 3000 psi; burst pressure this valve shall withstand a burst pressure of 4500 psi without failure, rupture, or external leakage; flow 20 gpm; cracking pressure 5 plus or minus 2 psi; pressure drop is not to exceed 22 psi at 20 gpm; internal leakage is not to exceed 1cc/min at 2000 psi; no external leakage permissable; materials to be compatible with operating specifications

Properties:

Maximum Operating Temp

170.0 degrees fahrenheit single response

End Application

M578 recovery vehicle

Valve Operation Method

Automatic

Mounting Facility

Bracket

Maximum Operating Pressure

2000.0 pounds per square inch single response

Center To Center Distance

1.813 inches

Media For Which Designed

Oil, hydraulic single response

Style Designator

Straight thru

NSN

4820-01-033-9666

Part Number

12253779-2

Description

Valve,check

CAGE

19207

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 12253779-2 NSN 4820-01-033-9666

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:

5.0 X 4.3 X 3.9

Paclk Weight:

5.7000lbs

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:

127220

UFC:

64490

LTL:

77.5

LCL:

77.5

WCC:

671

TCC:

SHC:

ACC:

Trailers/Vehicles

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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