F-637-31 2 1/2IN

View detailed technical data, stock status, and sourcing information for: F-637-31 2 1/2IN
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-196-0476

Item Name Code

05482

Assigment Date

12/07/1984 (41 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.

7.000 inches flange diameter, outside screw-yoke bonnet type, manual valve operation method, 4 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.

Flange Diameter: 7.000 inches
Bonnet Type: outside screw-yoke
Bonnet Attachment Method: bolted
Bolt Hole Quantity: 4
Valve Operation Method: manual
Connection Type: flange, round w/holes
Valve Size: 2.500 inches
Maximum Operating Pressure And Media For Which Designed: 250.0 pounds per square inch water-oil-gas
Stem Type: rising
Maximum Operating Temp And Media For Which Designed: 550.0 fahrenheit water-oil-gas
Face To Face Distance: 7.500 inches
Flange Face Design: raised
Inlet Relationship With Outlet: identical
Material: copper alloy and silicon stem
Material: copper alloy disk
Material: copper alloy seat
Material: iron body

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-283-0113	No Name Available	07/01/1994

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
F-637-31 2 1/2IN	Gate Valve
F-637-31-2 1/2I	Gate Valve

FAQs

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

What is the FSCG of the NSN 4820-01-196-0476?

The FSCG of the NSN 4820-01-196-0476 is 4820

Does the NSN 4820-01-196-0476 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803010

Does NSN 4820-01-196-0476 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 4820-01-196-0476 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-196-0476 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 4820-01-196-0476 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Fri, Dec 7, 1984