1638-3A

View detailed technical data, stock status, and sourcing information for: 1638-3A
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-886-2927

Item Name Code

05487

Assigment Date

01/01/1963 (63 years ago)

A length of nonmetallic hose, molded to a predetermined shape and size.

spring disk loading method, right-hand 2nd end thread direction, plain (pipe) 2nd end connection style, right-hand 1st end thread direction, ball flow control device

Product Characteristics

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

Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: ball
Disk Loading Method: spring
Connection Style: plain (pipe) 2nd end
Connection Style: plain, optional end (pipe) 1st end
Valve Operation Method: automatic
Connection Type: threaded external pipe 2nd end
Connection Type: threaded internal pipe 1st end
Mounting Position: horizontal or vertical
Nominal Thread Size: 0.125 inches 1st end
Nominal Thread Size: 0.125 inches 2nd end
Material: steel flow control device
Style Designator: straight thru
Thread Series Designator: nptf 1st end
Thread Series Designator: nptf 2nd end

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
1638-3A	Check Valve
204644A	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-886-2927?

The FSCG of the NSN 4820-00-886-2927 is 4820

Does NSN 4820-00-886-2927 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 4820-00-886-2927 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-886-2927 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 4820-00-886-2927 was assigned to the Federal Catalog?

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