4820-01-003-7633

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Valve Seat

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Official Item Classification

Name: Valve Seat
(NSN) National Stock Number: 4820-01-003-7633
(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: 05/05/1975 (51 years ago)

spruance class dd (963), arleigh burke class ddg. end item identification, 0.807 inches minimum and 0.809 inches maximum body outside diameter, 0.499 inches minimum and 0.500 inches maximum body inside diameter, 0.059 inches minimum and 0.061 inches maximum overall height, flat seating surface shape

Specs & Compatibility

Overall Height

0.059 inches minimum and 0.061 inches maximum

Body Outside Diameter

0.807 inches minimum and 0.809 inches maximum

Body Inside Diameter

0.499 inches minimum and 0.500 inches maximum

End Item Identification

spruance class dd (963), arleigh burke class ddg.

Seating Surface Shape

flat

Criticality Code Justification

feat

Special Features

weapon system essential

Material

plastic polytetrafluoroethylene overall

Style Designator

plain

Regulatory Compliance

Precious Metals Indicator

Precious metal content is unknown

Criticality Code

The item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restrictions 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
183304-0093	Valve Seat
183304-93	Valve Seat
280666PC13PT183	Valve Seat
280666PC13PT183304-0093	Valve Seat

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-003-7633?

The FSCG of the NSN 4820-01-003-7633 is 4820

Does the NSN 4820-01-003-7633 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-003-7633 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 4820-01-003-7633 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-003-7633 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 4820-01-003-7633 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Mon, May 5, 1975