Model: 277148

Safety Relief Valve

Special Features:

Weapon system essential. Features - two mtng holes 0.280 in. Dia.

Properties:

Thread Direction

Right-hand all ends

End Application

Vp2 fire/crash truck, p12 fire/crash truck, x009 rough terrain crane container, b0443 (tam) crane high spped, high mobility. Sealift support facilities program (ssfp) equipment; 4210-01-486-1035 tfft (tactical fire fighting truck)

Valve Operation Method

Automatic

Connection Type

Threaded internal pipe all ends

Mounting Facility

Threaded fastener

Valve Size

0.250 inches

Thread Size

0.250 inches all ends

Criticality Code Justification

Feat

Opening Pressure Setting

85.0 pounds per square inch

Thread Series Designator

Npt all ends

NSN

4820-01-104-3968

Part Number

277148

Description

Valve,safety Relief

CAGE

26494

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 277148 NSN 4820-01-104-3968

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:

1.0000lbs

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:

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