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4820-01-239-8964

Find complete technical information, availability, and procurement data for: 4820-01-239-8964

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4820-01-239-8964
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-01-239-8964
Item Name Code
22113
Assigment Date
09/05/1986 (39 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.

0.175 inches nominal single threaded portion thread length, 1.155 inches nominal flange diameter, 0.745 inches nominal body inside diameter, 2a single threaded portion thread class, 0.062 inches nominal flange seat to disk end 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 single threaded portion
Thread Length
0.175 inches nominal single threaded portion
Flange Diameter
1.155 inches nominal
Body Inside Diameter
0.745 inches nominal
Flange Seat To Disk End Height
0.062 inches nominal
Under Flange Height
0.190 inches nominal
Thread Quantity Per Inch
18 single threaded portion
Nominal Thread Size
1.000 inches single threaded portion
Seating Surface Shape
flat
Material
copper alloy overall
Style Designator
threaded flanged
Thread Series Designator
uns single 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
237-02 Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-239-8964?
The FSCG of the NSN 4820-01-239-8964 is 4820
Does the NSN 4820-01-239-8964 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-01-239-8964 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 4820-01-239-8964 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-239-8964 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 4820-01-239-8964 was assigned to the Federal Catalog?
It was assigned 39 years ago, on Fri, Sep 5, 1986

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