Model: 535-16D251

Check Valve

Properties:

Thread Class

3a 1st end

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Maximum Operating Temp

250.0 degrees fahrenheit single response

Connection Style

External seat for gasket seal (boss) 1st end

Connection Style

Plain (pipe) 2nd end

Valve Operation Method

Automatic

Connection Type

Threaded external boss 1st end

Connection Type

Threaded external pipe 2nd end

Mounting Position

Vertical

Thready Qty Per Inch (tpi)

12 1st end

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

1.313 inches 1st end

Thread Size

1.000 inches 2nd end

Seat Angle

37.0 degrees 1st end

Material

Aluminum alloy body

Media For Which Designed

Hydraulic fluid, mineral base single response

Style Designator

Straight thru

Thread Series Designator

Npt 2nd end

Thread Series Designator

Un 1st end

NSN

4820-01-252-9239

Part Number

535-16D251

Description

Valve,check

CAGE

86768

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 535-16D251 NSN 4820-01-252-9239

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:

576

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 8481309000
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of materials other than copper, iron or steel