T638-4PC25

View detailed technical data, stock status, and sourcing information for: T638-4PC25
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-389-4583

Item Name Code

22113

Assigment Date

01/01/1963 (63 years ago)

1.186 inches nominal flange diameter, anodize overall surface treatment, flat seating surface shape, recessed seal accommodation type, copper alloy overall material

Product Characteristics

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

Flange Diameter: 1.186 inches nominal
Seal Accommodation Type: recessed
Seating Surface Shape: flat
Material: copper alloy overall
Surface Treatment: anodize overall
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
T636-4PC25	Valve Seat
T636-6PC25	Valve Seat
T638-4PC25	Valve Seat
T670PC25	Valve Seat
T735FALT3PC3	Valve Seat
T853PC25	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-389-4583?

The FSCG of the NSN 4820-00-389-4583 is 4820

Does the NSN 4820-00-389-4583 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-389-4583 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 4820-00-389-4583 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-389-4583 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 4820-00-389-4583 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963