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4820-01-040-4980

Valve Adjusting Ring

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Official Item Classification

Name
Valve Adjusting Ring
(NSN) National Stock Number
4820-01-040-4980
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
77777
(FIIG) Federal Item Identification Guide
A23900
Date
05/08/1977 (49 years ago)

dresser industries 2-1/2 in. type 1553 safety relief valve 5vkg72 end item identification, cres steel casting,3.250 in. od,2.970 in. id,1.219 in o/a lg,flange 3.625 in. od,0.625 in. thk,id tapered 22 deg on flange side,thd end 3.000 in. od,2.750 in. id,2.500-16un-3b fit,flange slotted on od,2 drilled holes 0.156 in. dia,180 deg apart general characteristics item description

Specs & Compatibility

End Item Identification

dresser industries 2-1/2 in. type 1553 safety relief valve 5vkg72

General Characteristics Item Description

cres steel casting,3.250 in. od,2.970 in. id,1.219 in o/a lg,flange 3.625 in. od,0.625 in. thk,id tapered 22 deg on flange side,thd end 3.000 in. od,2.750 in. id,2.500-16un-3b fit,flange slotted on od,2 drilled holes 0.156 in. dia,180 deg apart

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

1015101

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Frequently Asked Questions

What is the FSCG of the NSN 4820-01-040-4980?
The FSCG of the NSN 4820-01-040-4980 is 4820
Does NSN 4820-01-040-4980 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 4820-01-040-4980 contain precious materials?
Precious metal content is unknown
Does NSN 4820-01-040-4980 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 4820-01-040-4980 was assigned to the Federal Catalog?
It was assigned 49 years ago, on Sun, May 8, 1977