4820-00-274-1349

Find complete technical information, availability, and procurement data for: 4820-00-274-1349
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-274-1349

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

0.250 inches 1st end nominal pipe size accommodated, poppet flow control device, right-hand 2nd end thread direction, 0.250 inches 2nd end nominal pipe size accommodated, right-hand 1st end thread direction

Product Characteristics

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

Nominal Pipe Size Accommodated: 0.250 inches 1st end
Nominal Pipe Size Accommodated: 0.250 inches 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: plain (pipe) 1st end
Connection Style: plain,optional end(pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal pipe 2nd end
Features Provided: pressure tight outlet side
Thread Quantity Per Inch: 18 1st end
Thread Quantity Per Inch: 18 2nd end
Nominal Thread Size: 0.250 inches 1st end
Nominal Thread Size: 0.250 inches 2nd end
Opening Pressure Setting: 235.0 pounds per square inch
Material: copper alloy body
Material: copper alloy and nickel alloy flow control device
Material: copper alloy stem
Material: nickel alloy seat
Style Designator: angle
Thread Series Designator: npt 2nd end
Thread Series Designator: npt 1st end
Reference Number Differentiating Characteristics: as differentiated in reply to pac adsv aclg and acmn

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:

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282-4900-801776PCV18	Safety Relief Valve
43835PC1T012	Safety Relief Valve
4824-158796PC1-4-210	Safety Relief Valve
4824-158796PC1-4-235	Safety Relief Valve
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FAQs

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

What is the FSCG of the NSN 4820-00-274-1349?

The FSCG of the NSN 4820-00-274-1349 is 4820

Does the NSN 4820-00-274-1349 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-274-1349 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 4820-00-274-1349 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-274-1349 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 4820-00-274-1349 was assigned to the Federal Catalog?

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