4820-00-018-5370

Find complete technical information, availability, and procurement data for: 4820-00-018-5370
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-018-5370

Item Name Code

22113

Assigment Date

01/01/1961 (65 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

0.320 inches nominal second threaded portion thread length, 2a second threaded portion thread class, 0.212 inches nominal first threaded portion thread length, 2a first threaded portion thread class, 0.755 inches nominal overall height

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2a first threaded portion
Thread Class: 2a second threaded portion
Thread Length: 0.320 inches nominal second threaded portion
Thread Length: 0.212 inches nominal first threaded portion
Overall Height: 0.755 inches nominal
Body Inside Diameter: 0.500 inches nominal
Nominal Thread Size: 0.688 inches first threaded portion
Nominal Thread Size: 0.875 inches second threaded portion
Seating Surface Shape: flat
Criticality Code Justification: feat
Special Features: special cleaned for liquid oxygen service
Material: steel corrosion resisting overall
Style Designator: double flanged
Thread Series Designator: unef first threaded portion
Thread Series Designator: unef second threaded portion

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
07299001156	Valve Seat
B7299-001-156	Valve Seat

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-00-018-5370?

The FSCG of the NSN 4820-00-018-5370 is 4820

Does the NSN 4820-00-018-5370 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-018-5370 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 4820-00-018-5370 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-018-5370 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 4820-00-018-5370 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961