257-280A

Fluid Pressure Regulating Valve

NSN 4820-01-135-5064

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

011355064

Product Features

Scale unit of measure inscription: pounds per square inch; dial outside diameter: 2.5 in.; dial range 0.0 to 15.0 and 0.0 to 4000.0

Detail Specifications

Body Material:

Copper alloy

Body Style:

Straight thru

Furnished Items:

Automatic relief valve and inlet pressure gage and outlet pressure gage

Media For Which Designed:

Nitrogen, gaseous

First End Connection Type:

Threaded internal tube

Second End Connection Type:

Threaded internal tube

Second End Style Designator:

Plain

Second End Thread Size And Series/type Designator:

9/16-18 unf

Second End Thread Class:

Second End Thread Direction:

Right-hand

Flow Control Device:

Diaphragm

End Connection Quantity:

Outlet Pressure Range:

+0.0/+15.0 pounds per square inch

Regulation Type:

1st stage automatic, 2nd stage manual

Manual Control Method:

Tee handle

Valve Stem Design:

Double seat

Valve Loading Method:

Spring

Remote Actuation Method:

Diaphragm

Maximum Inlet Pressure Rating:

4000.0 pounds per square inch

Filter:

Included

End Application:

M1 tank family

NSN:

4820-01-135-5064

Item Name:

Valve,air Regulator

Cage Code:

00914

Manufacturer Part Numbers

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

11729749

Cage Code:

19200

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

0781-5221

Cage Code:

63026

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

MODEL EST4-40-580

Cage Code:

63026

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

VTS 450A

Cage Code:

63026

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

27565

FIIG:

A21100

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

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:

7.3000lbs

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:

061480

UFC:

34500

LTL:

77.5

LCL:

77.5

WCC:

658

TCC:

SHC:

ACC:

Instruments/Radio

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Pricing & Availability

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Definition Definition of approved item name (AIN): "Air Regulator Valve"

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.