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4820-00-249-5502

Valve Seat

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Official Item Classification

Name
Valve Seat
(NSN) National Stock Number
4820-00-249-5502
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
22113
(FIIG) Federal Item Identification Guide
A15500
Date
11/19/1969 (56 years ago)

flat seating surface shape, nickel alloy a overall material, 0.450 inches nominal overall height, 0.312 inches minimum and 0.314 inches maximum body inside diameter, 0.401 inches minimum and 0.411 inches maximum body outside diameter

Specs & Compatibility

Overall Height

0.450 inches nominal

Body Outside Diameter

0.401 inches minimum and 0.411 inches maximum

Body Inside Diameter

0.312 inches minimum and 0.314 inches maximum

Seating Surface Shape

flat

Material

nickel alloy a overall

Material Document And Classification

qq-n-286,class a fed spec single material response overall

Surface Treatment

tin overall

Style Designator

plain

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

0022113

Related Hardware Products

Part Number Description
66141-302-1 Valve Seat

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-249-5502?
The FSCG of the NSN 4820-00-249-5502 is 4820
Does the NSN 4820-00-249-5502 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-00-249-5502 require demilitarization?
"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"
Does NSN 4820-00-249-5502 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-00-249-5502 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 4820-00-249-5502 was assigned to the Federal Catalog?
It was assigned 56 years ago, on Wed, Nov 19, 1969