172042

View detailed technical data, stock status, and sourcing information for: 172042
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-059-4925

Item Name Code

22113

Assigment Date

06/08/1967 (59 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.

0.036 inches minimum and 0.037 inches maximum under flange height, 0.602 inches minimum and 0.604 inches maximum flange diameter, 0.525 inches minimum and 0.526 inches maximum body outside diameter, 0.047 inches minimum and 0.050 inches maximum flange seat to disk end height, 0.270 inches minimum and 0.272 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: 0.602 inches minimum and 0.604 inches maximum
Body Outside Diameter: 0.525 inches minimum and 0.526 inches maximum
Body Inside Diameter: 0.270 inches minimum and 0.272 inches maximum
Flange Seat To Disk End Height: 0.047 inches minimum and 0.050 inches maximum
Under Flange Height: 0.036 inches minimum and 0.037 inches maximum
Seat Angle In Deg: 44.500 minimum and 45.500 maximum
Seating Surface Shape: angular
Material: plastic 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
172042	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-059-4925?

The FSCG of the NSN 4820-00-059-4925 is 4820

Does the NSN 4820-00-059-4925 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-059-4925 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 4820-00-059-4925 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-059-4925 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 4820-00-059-4925 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Thu, Jun 8, 1967