Model: 81-580

Fluid Pressure Regulating Valve

Properties:

Body Material

Brass, qq-b-626

Body Style

Y angle

Furnished Items

Cylinder gage and delivery gage

Unable To Decode

Unable to decode and unable to decode

Media For Which Designed

Argon and nitrogen, gaseous

First End Connection Type

Threaded external pipe

First End Style Designator

Plain

First End Thread Size And Series/type Designator

0.250-18 nptf

First End Thread Direction

Right-hand

Second End Relationship With First End

Not identical

Second End Connection Type

Threaded external gas cylinder

Second End Style Designator

Swivel nut, flared

Second End Thread Size And Series/type Designator

0.960-14 ngo

Second End Thread Direction

Right-hand

Flow Control Device

Needle

Flow Control Device Material

Brass, qq-b-626

End Connection Quantity

Second End Thread Pitch Diameters

+0.9050/+0.9109 inches

Second End Thread Pitch Diameters

+0.9050 to 0.9109 inches

Outlet Pressure Range

+0.0/+100.0 pounds per square inch

Outlet Pressure Range

+0.0 to 100.0 pounds per square inch

Regulation Type

Automatic double stage

Valve Loading Method

Spring

Maximum Inlet Pressure Rating

3000.0 pounds per square inch

Outlet Pressure Accuracy Rating

Not rated

Filter

Included

Unable To Decode

Unable to decode and unable to decode

NSN

4820-00-525-7837

Part Number

81-580

Description

Valve,regulating,fluid Pressure

CAGE

96355

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.

Part 81-580 NSN 4820-00-525-7837

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

27565

FIIG:

A21100

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:

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:

127220

UFC:

64490

LTL:

77.5

LCL:

WCC:

594

TCC:

SHC:

ACC:

Construction Materials

Pricing & Availability Check

Submit this form for stock availability and pricing.

How to Order

Ordering from buyaircraftparts.com

If you would like to order this fluid pressure regulating valve (NSN 4820-00-525-7837) please submit the pricing and availability form above to receive an up to date quote by email. If you agree to the pricing and terms you can e-sign your order online!

We are pleased to have the opportunity to serve you.

Have a Question

Hours:	08:00-18:00 Eastern Standard Time
Phone:	+1 470-231-0824
Email:	Contact Form »

Schedule B and Export

Schedule B: 8481809015
SITC: 74780
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level