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4820-01-340-5752

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-340-5752
(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
06/17/1991 (35 years ago)

right-hand all ends thread direction, 3a 1st end3b 2nd end thread class, flareless (tube) 1st endflare(tube) 2nd end connection style, automatic valve operation method, poppet flow control device

Specs & Compatibility

Thread Class

3a 1st end3b 2nd end

Thread Direction

right-hand all ends

Flow Control Device

poppet

Connection Style

flareless (tube) 1st endflare(tube) 2nd end

Valve Operation Method

automatic

Connection Type

threaded external tube 1st endthreaded internal tube 2nd end

Nominal Thread Size

0.750 inches all ends

Seat Angle

12.0 degrees 1st end

Opening Pressure Setting

50.0 pounds per square inch

Nominal Outside Diameter Tube Accommodated

0.500 inches 2nd end

Material

aluminum body

Style Designator

straight thru note: to be used for valve bodies of one section only.

Thread Series Designator

unf 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
5159A8EB50 Safety Relief Valve
7572990 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-340-5752?
The FSCG of the NSN 4820-01-340-5752 is 4820
Does the NSN 4820-01-340-5752 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-340-5752 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 4820-01-340-5752 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-340-5752 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 4820-01-340-5752 was assigned to the Federal Catalog?
It was assigned 35 years ago, on Mon, Jun 17, 1991