Model: D171A

Check Valve

Properties:

Thread Class

2a 1st end

Thread Class

2b 2nd end

Thread Direction

Right-hand all ends

Flow Control Device

Poppet

Connection Style

External seat for gasket seal (boss) 1st end

Connection Style

Gasket seal (boss) 2nd end

Valve Operation Method

Automatic

Connection Type

Threaded external boss 1st end

Connection Type

Threaded internal boss 2nd end

Mounting Position

Horizontal or vertical

Thread Size

0.750 inches 2nd end

Thread Size

1.125 inches 1st end

Material

Steel

Style Designator

Straight thru

Thread Series Designator

Unf all ends

NSN

4820-00-871-8384

Part Number

D171A

Description

Valve,check

CAGE

20263

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 D171A NSN 4820-00-871-8384

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:

127220

UFC:

64490

LTL:

77.5

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