21F-D17-SC-12

View detailed technical data, stock status, and sourcing information for: 21F-D17-SC-12
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-269-1535

Item Name Code

05485

Assigment Date

12/12/1987 (38 years ago)

disk flow control device, 450.0 fahrenheit single response maximum operating temp, outside screw-yoke bonnet type, 12 all ends bolt hole quantity, bolted bonnet attachment method

Product Characteristics

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

Flow Control Device: disk
Bonnet Type: outside screw-yoke
Bonnet Attachment Method: bolted
Bolt Hole Quantity: 12 all ends
Maximum Operating Temp: 450.0 fahrenheit single response
Valve Operation Method: manual
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 12.000 inches
Maximum Operating Pressure: 275.0 pounds per square inch single response
Nominal Outside Diameter: 19.000 inches all ends
Face To Face Distance: 27.500 inches
Nominal Thickness: 1.250 inches all ends
Bolt Hole Nominal Diameter: 0.875 inches all ends
Bolt Circle Nominal Diameter: 17.000 inches all ends
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches
Raised Face Nominal Diameter: 15.000 inches
Special Features: stop check type
Material: copper alloy 377 stem
Material: copper alloy 922 flow control device
Material: copper alloy 922 seat
Material: iron cast uns f32800 body
Material Document And Classification: astm a395 assn std single material response body
Material Document And Classification: astm b114 grade 377 assn std single material response stem
Material Document And Classification: astm b61 assn std single material response flow control device
Material Document And Classification: astm b61 assn std single material response seat
Media For Which Designed: water-oil-gas single response
Style Designator: straight thru flanged ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-274-4720	No Name Available	02/01/1992

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
12IN 21F-DI7-SC	Globe Valve
21F-D17-SC-12	Globe Valve
21F-DI7-SC 10IN	Globe Valve
21F-DI7-SC 12IN	Globe Valve
21F-DI7-SC-12	Globe Valve
PS-2112D7S0	Globe Valve
PS-2V10DS0001	Globe Valve

FAQs

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

What is the FSCG of the NSN 4820-01-269-1535?

The FSCG of the NSN 4820-01-269-1535 is 4820

Does the NSN 4820-01-269-1535 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803015

Does NSN 4820-01-269-1535 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 4820-01-269-1535 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-269-1535 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 4820-01-269-1535 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sat, Dec 12, 1987