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4820-01-442-2579

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-442-2579
(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
03/10/1997 (29 years ago)

seawolf class ssn end item identification, 2b all ends thread quantity per inch, automatic valve operation method, threaded internal tube all ends connection type, right-hand all ends thread direction

Specs & Compatibility

Thread Direction

right-hand all ends

End Item Identification

seawolf class ssn

Valve Operation Method

automatic

Connection Type

threaded internal tube all ends

Thread Quantity Per Inch

2b all ends

Nominal Thread Size

1.625 inches all ends

Nominal Outside Diameter Tube Accommodated

1.250 inches all ends

Thread Series Designator

un 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
211086988 Safety Relief Valve
801-6405539-AY5 Safety Relief Valve
801-6405539-AY55 Safety Relief Valve
DRO-2210 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-442-2579?
The FSCG of the NSN 4820-01-442-2579 is 4820
Does the NSN 4820-01-442-2579 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-442-2579 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 4820-01-442-2579 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-442-2579 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 4820-01-442-2579 was assigned to the Federal Catalog?
It was assigned 29 years ago, on Mon, Mar 10, 1997