4820-00-277-3853

Find complete technical information, availability, and procurement data for: 4820-00-277-3853
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-277-3853

Item Name Code

05488

Assigment Date

08/12/1973 (52 years ago)

A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes:packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.

right-hand 1st end thread direction, plug flow control device, spring disk loading method, 10.0 gallons per minute valve discharge flow rate, 2b 1st end thread class

Product Characteristics

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

Thread Class: 2b 1st end
Thread Direction: right-hand 1st end
Flow Control Device: plug
Disk Loading Method: spring
Valve Discharge Flow Rate: 10.0 gallons per minute
Renewable Seat Ring Type: threaded
Connection Style: gasket seal(boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded internal boss 1st end
Features Provided: pressure tight outlet side
Thread Quantity Per Inch: 16 1st end
Adjustable Pressure Range: +500.0 to 4500.0 pounds per square inch
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches 1st end
Thread Series Designator: unf 1st 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
146D525-1	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-277-3853?

The FSCG of the NSN 4820-00-277-3853 is 4820

Does the NSN 4820-00-277-3853 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-277-3853 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 4820-00-277-3853 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-277-3853 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 4820-00-277-3853 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Sun, Aug 12, 1973