4820-00-034-1691

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Valve Seat

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Official Item Classification

Name: Valve Seat
(NSN) National Stock Number: 4820-00-034-1691
(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: 05/06/1967 (59 years ago)

0.500 inches minimum and 0.505 inches maximum body inside diameter, 0.160 inches nominal flange seat to disk end height, 3930-00-903-0899 end item identification, 0.580 inches minimum and 0.588 inches maximum body outside diameter, 0.802 inches minimum and 0.804 inches maximum flange diameter

Specs & Compatibility

Flange Diameter

0.802 inches minimum and 0.804 inches maximum

Body Outside Diameter

0.580 inches minimum and 0.588 inches maximum

Body Inside Diameter

0.500 inches minimum and 0.505 inches maximum

End Item Identification

3930-00-903-0899

Flange Seat To Disk End Height

0.160 inches nominal

Under Flange Height

0.990 inches nominal

Seat Angle In Deg

0.750 nominal

Seating Surface Shape

angular

Material

steel overall

Style Designator

plain flanged

Fsc Application Data

valve,power brake

Regulatory Compliance

Precious Metals Indicator

Item does not contain precious metal.

Criticality Code

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator

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
610733	Valve Seat
944934	Valve Seat

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-034-1691?

The FSCG of the NSN 4820-00-034-1691 is 4820

Does the NSN 4820-00-034-1691 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-034-1691 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 4820-00-034-1691 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-034-1691 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 4820-00-034-1691 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Sat, May 6, 1967