Model: 527-4D

Check Valve

Special Features:

Supports grumman a-10 aircraft

Properties:

Thread Class

3a all ends

Thread Direction

Right-hand all ends

Flow Control Device

Disk

Disk Loading Method

Spring

Valve Operation Method

Automatic

Connection Type

Threaded external tube all ends

Mounting Position

Horizontal

Maximum Operating Pressure

75.0 pounds per square inch single response

Thread Size

0.438 inches all ends

Seat Angle

37.0 degrees all ends

Outside Diameter Tube Accommodated

0.250 inches 1st end

Material

Aluminum alloy

Media For Which Designed

Fuel/oil, hydrocarbon single response

Thread Series Designator

Unf all ends

Specification Data

96906-ms28885 government standard

Nondefinitive Specification/std Data

4 size

NSN

4820-00-141-9029

Part Number

527-4D

Description

Valve,check

CAGE

45681

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 527-4D NSN 4820-00-141-9029

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:

0.1000lbs

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