4820-00-974-3948

Find complete technical information, availability, and procurement data for: 4820-00-974-3948
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-974-3948

Item Name Code

22113

Assigment Date

01/01/1962 (64 years ago)

1.963 inches minimum and 1.973 inches maximum body outside diameter, 1.649 inches minimum and 1.655 inches maximum taper major diameter, 1.281 inches nominal taper minor diameter, 1.649 inches minimum and 1.655 inches maximum body inside diameter, 2.501 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: 2.501 inches nominal
Taper Minor Diameter: 1.281 inches nominal
Taper Major Diameter: 1.649 inches minimum and 1.655 inches maximum
Body Outside Diameter: 1.963 inches minimum and 1.973 inches maximum
Body Inside Diameter: 1.649 inches minimum and 1.655 inches maximum
Seat Radius: 0.381 inches minimum and 0.387 inches maximum
Flange Seat To Disk End Height: 0.498 inches minimum and 0.502 inches maximum
Under Flange Height: 1.678 inches minimum and 1.682 inches maximum
Seating Surface Shape: radial
Material: cobalt alloy face
Material: steel body
Material Document And Classification: mil-r-17131,type mil-rcocr-a mil spec single material response face
Material Document And Classification: qq-s-763,class 410 fed spec single material response body
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
101B209CY	Valve Seat
101B209CY-1	Valve Seat
101B209CYPC1	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-974-3948?

The FSCG of the NSN 4820-00-974-3948 is 4820

Does the NSN 4820-00-974-3948 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-974-3948 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 4820-00-974-3948 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-974-3948 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 4820-00-974-3948 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962