4320-N-183

View detailed technical data, stock status, and sourcing information for: 4320-N-183
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-174-4178

Item Name Code

35224

Assigment Date

03/17/1984 (42 years ago)

An item in the form of one or more thin flexible sheets normally designed to form a tight seal between chambers of a valve, and to transmit motion to a valve disk either directly or through a mechanical linkage. The surface of the item(s) may not be formed or molded to have a beaded or rolled edge, ribs, or any other raised surfaces. The item may contain bolt holes and/or a center hole. Excludes:diaphragm, valve, special shaped and gasket.

100.0 pounds per square inch nominal pressure rating, gas or oil or water media for which designed, 4.625 inches nominal overall height, 85.0 degrees nominal seat angle, nickel alloy material

Product Characteristics

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

Overall Height: 4.625 inches nominal
Pressure Rating: 100.0 pounds per square inch nominal
Seat Angle: 85.0 degrees nominal
Material: nickel alloy
Media For Which Designed: gas or oil or water
Style Designator: solid wedge

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-225-3226	No Name Available	07/01/1992
4820-01-432-4711	No Name Available	09/01/2005

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
1305 ITEM 6	Valve Disk
1305 ITEM 6 4320-N	Valve Disk
1305 ITEM 6 4IN	Valve Disk
1306 PC6-4.0IN	Valve Disk
4320-G	Valve Disk
4320-N	Valve Disk
4320-N-183	Valve Disk
4320-NP-183	Valve Disk
4620-NP-180	Valve Disk

FAQs

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

What is the FSCG of the NSN 4820-01-174-4178?

The FSCG of the NSN 4820-01-174-4178 is 4820

Does the NSN 4820-01-174-4178 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-174-4178 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 4820-01-174-4178 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-174-4178 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 4820-01-174-4178 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, Mar 17, 1984