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3173-059 Valve Seat

4820-00-295-9358

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Official Item Classification

Name
Valve Seat
Part Number
3173-059
(NSN) National Stock Number
4820-00-295-9358
(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
09/28/1973 (52 years ago)

0.190 inches nominal flange seat to disk end height, 0.358 inches nominal flange diameter, 0.327 inches nominal body outside diameter, 0.255 inches nominal under flange height, 0.171 inches nominal body inside diameter

Specs & Compatibility

Flange Diameter

0.358 inches nominal

Body Outside Diameter

0.327 inches nominal

Body Inside Diameter

0.171 inches nominal

Flange Seat To Disk End Height

0.190 inches nominal

Under Flange Height

0.255 inches nominal

Hardness Rating

58.0 rockwell c minimum and 62.0 rockwell c maximum overall

Seating Surface Shape

flat

Material

steel comp 440c overall

Surface Treatment

passivate overall

Style Designator

plain flanged

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

0022113

Related Hardware Products

Part Number Description
3173-059 Valve Seat

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-295-9358?
The FSCG of the NSN 4820-00-295-9358 is 4820
Does the NSN 4820-00-295-9358 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-00-295-9358 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 4820-00-295-9358 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-295-9358 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 4820-00-295-9358 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Fri, Sep 28, 1973