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4820-01-134-3546

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-134-3546
(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
07/03/1982 (44 years ago)

poppet flow control device, automatic valve operation method, 1.500 inches all ends nominal width, 4 all ends bolt hole quantity, 3.000 inches all ends nominal length

Specs & Compatibility

Flow Control Device

poppet

Bolt Hole Quantity

4 all ends

Nominal Width

1.500 inches all ends

Nominal Length

3.000 inches all ends

Valve Operation Method

automatic

Flange Shape

oval with holes all ends

Connection Type

flange all ends

Valve Size

0.750 inches

Adjustable Pressure Range

+30.0 to 75.0 pounds per square inch

Face To Face Distance

1.750 inches

Nominal Thickness

0.390 inches all ends

Bolt Hole Nominal Diameter

0.350 inches all ends

Bolt Circle Nominal Diameter

2.375 inches all ends

Flange Face Design

plain all ends

Material

iron overall

Style Designator

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

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
3-795-200-000 Safety Relief Valve
3-795-200-000-06 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-134-3546?
The FSCG of the NSN 4820-01-134-3546 is 4820
Does the NSN 4820-01-134-3546 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-134-3546 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 4820-01-134-3546 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-134-3546 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 4820-01-134-3546 was assigned to the Federal Catalog?
It was assigned 44 years ago, on Sat, Jul 3, 1982