Model: 402681-3

Restrictor Check Valve

Properties:

Thread Class

3a 1st end

Thread Direction

Right-hand 1st end

Aperture Diameter

0.055 inches

Flow Control Device

Cone

Connection Style

Flared (tube) 1st end

Connection Type

Threaded external tube 1st end

Thready Qty Per Inch (tpi)

18 1st end

Maximum Operating Pressure

1500.0 pounds per square inch single response

Thread Size

0.750 inches 1st end

Seat Angle

37.0 degrees 1st end

Outside Diameter Tube Accommodated

0.500 inches 1st end

Material

Aluminum alloy body

Material

Rubber synthetic packing

Media For Which Designed

Hydraulic fluid, mineral base single response

Style Designator

Straight thru

Thread Series Designator

Un 1st end

NSN

4820-00-032-8391

Part Number

402681-3

Description

Valve,restrictor Check

CAGE

59364

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

Part 402681-3 NSN 4820-00-032-8391

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

20520

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

LCL:

77.5

WCC:

594

TCC:

SHC:

ACC:

Equipment for Aircraft

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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