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H555 Safety Relief Valve

4820-00-451-0570

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Official Item Classification

Nombre
Safety Relief Valve
Número de Parte
H555
(NSN) Número de stock nacional
4820-00-451-0570
(FSG) Grupo de suministro federal
48 Valves
(FSC) Clasificación Federal de Suministros
4820 Válvulas no motorizadas
(INC) Código de nombre del artículo
05488
(FIIG) Guía Federal de Identificación de Artículos
A046B0
Fecha
05/17/1971 (hace 55 años)

3a 2nd end thread class, right-hand 2nd end thread direction, poppet flow control device, right-hand 1st end thread direction, 3b 1st end thread class

Specs & Compatibility

Clase de rosca

3a 2nd end

Clase de rosca

3b 1st end

Dirección de la rosca

right-hand 1st end

Dirección de la rosca

right-hand 2nd end

Dispositivo de control de flujo

poppet

Tipo de gorro

packing retaining

Método de carga de disco

spring

Caudal de descarga de la válvula

6.0 gallons per minute

Temperatura máxima de funcionamiento

275.0 fahrenheit single response

Estilo de conexión

external seat for gasket seal (boss) 2nd end

Estilo de conexión

gasket seal(boss) 1st end

Método de operación de la válvula

automatic

Tipo de conexión

threaded external boss 2nd end

Tipo de conexión

threaded internal boss 1st end

Características proporcionadas

pressure tight outlet side

Cantidad de hilo por pulgada

16 1st end

Cantidad de hilo por pulgada

16 2nd end

Presión máxima de funcionamiento

35.0 pounds per square inch single response

Tamaño nominal de la rosca

0.750 inches 2nd end

Tamaño nominal de la rosca

0.750 inches 1st end

Ajuste de la presión de apertura

48.0 pounds per square inch

Diámetro exterior nominal del tubo alojado

0.500 inches 1st end

Diámetro exterior nominal del tubo alojado

0.500 inches 2nd end

Características especiales

second end description is inlet

Material

steel comp 303 body

Material

steel comp 303 seat

Material

steel comp 630 flow control device

Material, Documento Y Clasificación

ams 5643 mfr ref 2nd material response flow control device

Material, Documento Y Clasificación

qq-s-764,type 303-canceled fed spec 1st material response body

Material, Documento Y Clasificación

qq-s-764,type 303-canceled fed spec 3rd material response seat

Medios para los que se diseñaron

hydraulic fluid, mineral base single response

Designador de serie de roscas

unf 2nd end

Designador de serie de roscas

unjf 1st end

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0005488

Related Hardware Products

Número de Parte Descripción
65651-09106-102 Safety Relief Valve
H555 Safety Relief Valve

Preguntas frecuentes

What is the FSCG of the NSN 4820-00-451-0570?
The FSCG of the NSN 4820-00-451-0570 is 4820
Does the NSN 4820-00-451-0570 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-451-0570 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4820-00-451-0570 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-451-0570 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4820-00-451-0570 was assigned to the Federal Catalog?
It was assigned hace 55 años, on Mon, May 17, 1971