Model: 15-158-201

Safety Relief Valve

Special Features:

O/a lg 4.250 in.

Properties:

Thread Class

3a all ends

Thread Direction

Right-hand all ends

Valve Discharge Flow Rate

2.0 cubic feet per minute

Maximum Operating Temp

185.0 degrees fahrenheit 1st response

Maximum Operating Temp

250.0 degrees fahrenheit 2nd response

Minimum Operating Temp

-65.0 degrees fahrenheit

End Application

Aircraft; e-2c hawkeye

Connection Style

G43 external seat for gasket seal (boss) all ends

Valve Operation Method

Automatic

Connection Type

Threaded external boss all ends

Thready Qty Per Inch (tpi)

12 all ends

Thread Size

1.062 inches all ends

Seat Angle

37.0 degrees all ends

Material

Aluminum alloy body

Media For Which Designed

Air 1st response

Media For Which Designed

Fuel/oil, hydrocarbon 2nd response

Surface Treatment

Anodize

Thread Series Designator

Un all ends

NSN

4820-01-441-6647

Part Number

15-158-201

Description

Valve,safety Relief

CAGE

92003

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Part 15-158-201 NSN 4820-01-441-6647

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05488

FIIG:

A046B0

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:

0.3000lbs

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: 8481400000
SITC: 74740
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Safety or relief valves