803-2177525-C421AF

View detailed technical data, stock status, and sourcing information for: 803-2177525-C421AF
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-491-8055

Item Name Code

05483

Assigment Date

03/23/1972 (54 years ago)

A valve with one inlet and one outlet connection with outlet flow parallel to inlet flow. The flow is controlled by the action of a stem which lifts the disk perpendicularly off the center axis of its seat. The stem is at a 90 degree (1.5708 radians) angle to axis of flow. Excludes:valve, stop-check; cock, shutoff, screw stem; and valve, solenoid.

bolted bonnet attachment method, disk flow control device, 775.0 fahrenheit single response maximum operating temp, outside screw-yoke bonnet type, 0.750 inches 1st end nominal pipe size accommodated

Product Characteristics

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

Nominal Pipe Size Accommodated: 0.750 inches 1st end
Flow Control Device: disk
Bonnet Type: outside screw-yoke
Bonnet Attachment Method: bolted
Maximum Operating Temp: 775.0 fahrenheit single response
Connection Style: socket 1st end
Valve Operation Method: manual
Connection Type: unthreaded internal pipe 1st end
Features Provided: bonnet packing
Criticality Code Justification: zzzy
Material: steel body
Material: steel flow control device
Material: steel seat
Material: steel stem
Style Designator: angle
Test Data Document: 80064-810-2177525 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Reference Number Differentiating Characteristics: material controlled iaw navsea 0948-lp-045-7010 material control standard for level i items

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-915-1431	No Name Available	03/01/2014
4820-00-939-7948	No Name Available	01/01/2014
4820-01-056-1585	No Name Available	12/01/1978
4820-01-239-3604	No Name Available	09/01/1987

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
803-2177525-C421AF	Angle Valve
803-2177525-C421AFL1	Angle Valve
803-2177525-C4B1AF	Angle Valve
803-2177525-C4B1AFL1	Angle Valve

FAQs

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

What is the FSCG of the NSN 4820-00-491-8055?

The FSCG of the NSN 4820-00-491-8055 is 4820

Does the NSN 4820-00-491-8055 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803090

Does NSN 4820-00-491-8055 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-00-491-8055 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-491-8055 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 4820-00-491-8055 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Thu, Mar 23, 1972