4820-01-640-6689

Find complete technical information, availability, and procurement data for: 4820-01-640-6689
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for NSN 4820-01-640-6689 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-640-6689

Item Name Code

16996

Assigment Date

12/17/2014 (11 years ago)

An item in which a gas is ionized to produce light energy of low persistence. It may include internal current limiting resistor.

140.0 fahrenheit temp rating, straight thru body style, 3h first end thread class, 1.000 inches nominal second end width across flats, not identical second end relationship with first end

Product Characteristics

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

Body Style: straight thru
Temp Rating: 140.0 fahrenheit
First End Thread Class: 3h
Second End Relationship With First End: not identical
Second End Width Across Flats: 1.000 inches nominal
Body Outside Diameter: 1.000 inches nominal
End Connection Quantity: 1
Opening Pressure Setting: 4500.0 pounds per square inch
End Item Identification: ch/mh-53; nha: 65664-03010-011/013
First End Thread Series Designator: unjf
First End Nominal Thread Size: 0.4375 inches
Special Features: service: dry air or dry nitrogen; temp. range: m31/p140 deg f; pressure ratings: operating: 3000 psig @ 68 deg f; crack: 4500+/- 150 psig; reseat: 4100 psig min; proof: 5000 psig: burst: 7500 psig; rated flow: 0.31 lb/minute at 5000 psig max; leakage: none below 4100 psig; acceptance test per 43942175
Supplementary Features: one inlet; two outlets

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
23942175-1	Pressure and Temper Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-640-6689?

The FSCG of the NSN 4820-01-640-6689 is 4820

Does the NSN 4820-01-640-6689 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-640-6689 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 4820-01-640-6689 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-640-6689 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 4820-01-640-6689 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Wed, Dec 17, 2014