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4820-01-181-8519

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-181-8519
(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
06/16/1984 (42 years ago)

right-hand 1st end thread direction, 2b 1st end thread class, plain (tube) 2nd end connection style, swivel nut,flareless(tube) 1st end connection style, disk flow control device

Specs & Compatibility

Thread Class

2b 1st end

Thread Direction

right-hand 1st end

Flow Control Device

disk

Connection Style

swivel nut,flareless(tube) 1st end

Connection Style

plain (tube) 2nd end

Valve Operation Method

automatic

Connection Type

threaded internal tube 1st end

Connection Type

unthreaded external tube 2nd end

Features Provided

pressure tight outlet side

Nominal Thread Size

1.250 inches 1st end

Nominal Outside Diameter Tube Accommodated

0.750 inches 2nd end

Special Features

beatrice foods co,freezer div,ice cream freezer model 433 and 751

Material

steel body

Style Designator

angle

Thread Series Designator

unf 1st end

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
023604 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-181-8519?
The FSCG of the NSN 4820-01-181-8519 is 4820
Does the NSN 4820-01-181-8519 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-181-8519 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 4820-01-181-8519 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-181-8519 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 4820-01-181-8519 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Sat, Jun 16, 1984