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4820-01-067-9722

Valve Seat

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Official Item Classification

Name
Valve Seat
(NSN) National Stock Number
4820-01-067-9722
(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
11/11/1978 (47 years ago)

0.531 inches nominal single threaded portion thread length, 3a single threaded portion thread class, 0.250 inches nominal flange seat to disk end height, 4.812 inches nominal flange diameter, 3.938 inches nominal body inside diameter

Specs & Compatibility

Thread Class

3a single threaded portion

Thread Length

0.531 inches nominal single threaded portion

Flange Diameter

4.812 inches nominal

Body Inside Diameter

3.938 inches nominal

Flange Seat To Disk End Height

0.250 inches nominal

Under Flange Height

0.531 inches nominal

Thread Quantity Per Inch

12 single threaded portion

Nominal Thread Size

4.531 inches single threaded portion

Seating Surface Shape

flat

Special Features

for 4 in. valve

Material

nickel alloy overall

Material Document And Classification

qq-n-288 fed spec single material response overall

Style Designator

threaded flanged

Thread Series Designator

uns single threaded portion

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

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Frequently Asked Questions

What is the FSCG of the NSN 4820-01-067-9722?
The FSCG of the NSN 4820-01-067-9722 is 4820
Does the NSN 4820-01-067-9722 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-01-067-9722 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 4820-01-067-9722 contain precious materials?
Precious metal content is unknown
Does NSN 4820-01-067-9722 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 4820-01-067-9722 was assigned to the Federal Catalog?
It was assigned 47 years ago, on Sat, Nov 11, 1978