4820-01-474-8794

Find complete technical information, availability, and procurement data for: 4820-01-474-8794
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-474-8794

Item Name Code

22113

Assigment Date

05/16/2000 (26 years ago)

A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use disk, solid, plain. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see spacer, plate; washer, flat and spacer, ring. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also shim stock, laminated; shim stock assortment, gasket; and bearing, washer, thrust.

0.153 inches nominal flange seat to disk end height, flat seating surface shape, 0.984 inches nominal body inside diameter, 0.378 inches nominal under flange height, 1.555 inches nominal flange 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: 1.555 inches nominal
Body Inside Diameter: 0.984 inches nominal
Flange Seat To Disk End Height: 0.153 inches nominal
Under Flange Height: 0.378 inches nominal
Seating Surface Shape: flat
Material: cobalt alloy seat
Style Designator: threaded 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
803-6397434-X3XXXX-049	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-474-8794?

The FSCG of the NSN 4820-01-474-8794 is 4820

Does the NSN 4820-01-474-8794 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-474-8794 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 4820-01-474-8794 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-474-8794 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 4820-01-474-8794 was assigned to the Federal Catalog?

It was assigned 26 years ago, on Tue, May 16, 2000