4820-01-256-0644

Find complete technical information, availability, and procurement data for: 4820-01-256-0644
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-256-0644

Item Name Code

22113

Assigment Date

05/31/1987 (39 years ago)

flat seating surface shape, 0.663 inches nominal body outside diameter, 0.235 inches nominal body inside diameter, steel overall material, 0.127 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.

Overall Height: 0.127 inches nominal
Body Outside Diameter: 0.663 inches nominal
Body Inside Diameter: 0.235 inches nominal
Seating Surface Shape: flat
Material: steel overall
Style Designator: plain

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
HL19354	Valve Seat
HL19354 PIECE 243.2	Valve Seat
SET 148	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-256-0644?

The FSCG of the NSN 4820-01-256-0644 is 4820

Does the NSN 4820-01-256-0644 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-256-0644 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 4820-01-256-0644 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-256-0644 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 4820-01-256-0644 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Sun, May 31, 1987