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4820-01-280-5272

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-280-5272
(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
06/11/1988 (38 years ago)

plain,optional end(pipe) 2nd end connection style, automatic valve operation method, right-hand all ends thread direction, plain (pipe) 1st end connection style, disk flow control device

Specs & Compatibility

Thread Direction

right-hand all ends

Flow Control Device

disk

Connection Style

plain (pipe) 1st end

Connection Style

plain,optional end(pipe) 2nd end

Valve Operation Method

automatic

Connection Type

threaded external pipe 1st end

Connection Type

threaded internal pipe 2nd end

Nominal Thread Size

0.750 inches 1st end

Nominal Thread Size

1.000 inches 2nd end

Opening Pressure Setting

30.0 pounds per square inch

Material

copper alloy body

Material

copper alloy flow control device

Material

plastic polytetrafluoroethylene seat

Material

steel corrosion resisting stem

Style Designator

angle

Thread Series Designator

npt all ends

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

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
29 SERIES 3/4IN Safety Relief Valve
29-302-07 Safety Relief Valve
29SERIES 0.75IN Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-280-5272?
The FSCG of the NSN 4820-01-280-5272 is 4820
Does the NSN 4820-01-280-5272 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-280-5272 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 4820-01-280-5272 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-280-5272 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 4820-01-280-5272 was assigned to the Federal Catalog?
It was assigned 38 years ago, on Sat, Jun 11, 1988