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4820-00-757-3231

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-00-757-3231
(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
01/01/1960 (66 years ago)

threaded cartridge all ends connection type, hex 0.688 in.; thru hole 0.590 in. dia both sides special features, plain (screw-in cartridge) all ends connection style, threaded fastener mounting facility, automatic valve operation method

Specs & Compatibility

Connection Style

plain (screw-in cartridge) all ends

Valve Operation Method

automatic

Connection Type

threaded cartridge all ends

Mounting Facility

threaded fastener

Special Features

hex 0.688 in.; thru hole 0.590 in. dia both sides

Style Designator

screw-in cartridge

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
4C187 Safety Relief Valve
8453133-1 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-757-3231?
The FSCG of the NSN 4820-00-757-3231 is 4820
Does the NSN 4820-00-757-3231 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-757-3231 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 4820-00-757-3231 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-757-3231 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 4820-00-757-3231 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960