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ST7M304 Safety Relief Valve

4820-00-344-4712

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Official Item Classification

Name
Safety Relief Valve
Part Number
ST7M304
(NSN) National Stock Number
4820-00-344-4712
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
05488
(FIIG) Federal Item Identification Guide
A046B0
Date
01/20/1974 (52 years ago)

3a 1st end thread class, inside spring bonnet type, integral bonnet attachment method, right-hand 1st end thread direction, poppet flow control device

Specs & Compatibility

Thread Class

3a 1st end

Thread Direction

right-hand 1st end

Flow Control Device

poppet

Bonnet Type

inside spring

Bonnet Attachment Method

integral

Disk Loading Method

spring

Maximum Operating Temp

140.0 fahrenheit 2nd response

Minimum Operating Temp

-40.0 fahrenheit

Connection Style

external seat for gasket seal (boss) 1st end

Valve Operation Method

automatic

Connection Type

threaded external boss 1st end

Maximum Operating Pressure

200.0 pounds per square inch 1st response

Nominal Thread Size

0.562 inches 1st end

Opening Pressure Setting

4.7 pounds per square inch

Nominal Outside Diameter Tube Accommodated

0.375 inches 1st end

Material

aluminum alloy 2024 and rubber butadiene-acrylonitrile class nbr flow control device

Material

aluminum alloy 2024 body

Material

aluminum alloy 2024 seat

Material Document And Classification

qq-a-225/6,alloy2024,t4 fed spec 1st material response flow control device

Material Document And Classification

qq-a-225/6,alloy2024,t4 fed spec single material response body

Material Document And Classification

qq-a-225/6,alloy2024,t4 fed spec single material response seat

Media For Which Designed

air 1st response

Surface Treatment

anodize

Style Designator

straight thru w/baffle

Thread Series Designator

unf 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

Part Number Description
D537A6D4.7 Safety Relief Valve
D559A-6D-4.7 Safety Relief Valve
ST7M304 Safety Relief Valve
ST7M304D6-4.7 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-344-4712?
The FSCG of the NSN 4820-00-344-4712 is 4820
Does the NSN 4820-00-344-4712 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-344-4712 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 4820-00-344-4712 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-344-4712 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 4820-00-344-4712 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Sun, Jan 20, 1974