4820-01-166-1027

Find complete technical information, availability, and procurement data for: 4820-01-166-1027
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-166-1027

Item Name Code

10958

Assigment Date

11/08/1983 (42 years ago)

A mechanical vacuum/or cable operated valve designed to thermostatically regulate the flow of water from the engine to the heater core.

1.75 pounds per square inch maximum operating pressure, 2a first end thread class, threaded internal boss first end connection type, single connection, straight flow body style, external seat for gasket seal first end style designator

Product Characteristics

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

Maximum Operating Pressure: 1.75 pounds per square inch
Body Style: single connection, straight flow
First End Connection Type: threaded internal boss
First End Style Designator: external seat for gasket seal
First End Thread Class: 2a
First End Thread Direction: right-hand
Flow Control Device: disk, circular
End Connection Quantity: 1
Valve Venting Design Type: atmospheric
Valve Relief Design Type: pressure
Material: aluminum alloy 2017 body
Material Document And Classification: qq-a-225/5, alloy 2017 fed spec single material response body

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
790 MPV	Gaseou Pressure Equalizing Valve
790 MPV 175175	Gaseou Pressure Equalizing Valve
SM-C-686880	Gaseou Pressure Equalizing Valve

FAQs

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

What is the FSCG of the NSN 4820-01-166-1027?

The FSCG of the NSN 4820-01-166-1027 is 4820

Does the NSN 4820-01-166-1027 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-01-166-1027 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 4820-01-166-1027 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-166-1027 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 4820-01-166-1027 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Nov 8, 1983