4820-00-145-4124

Find complete technical information, availability, and procurement data for: 4820-00-145-4124
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-145-4124

Item Name Code

22113

Assigment Date

09/01/1971 (54 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.

0.037 inches minimum and 0.039 inches maximum under flange height, 0.747 inches minimum and 0.749 inches maximum flange diameter, 0.688 inches minimum and 0.689 inches maximum body outside diameter, 0.108 inches minimum and 0.112 inches maximum flange seat to disk end height, 0.375 inches minimum and 0.377 inches maximum body inside diameter

Product Characteristics

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

Flange Diameter: 0.747 inches minimum and 0.749 inches maximum
Body Outside Diameter: 0.688 inches minimum and 0.689 inches maximum
Body Inside Diameter: 0.375 inches minimum and 0.377 inches maximum
Flange Seat To Disk End Height: 0.108 inches minimum and 0.112 inches maximum
Under Flange Height: 0.037 inches minimum and 0.039 inches maximum
Seat Angle In Deg: 30.000 nominal
Seating Surface Shape: angular
Material: plastic polyamide (nylon) overall
Style Designator: plain flanged

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
173152-0093	Valve Seat
173152-93	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-145-4124?

The FSCG of the NSN 4820-00-145-4124 is 4820

Does the NSN 4820-00-145-4124 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-145-4124 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 4820-00-145-4124 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-145-4124 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 4820-00-145-4124 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Wed, Sep 1, 1971