4820-01-497-5581

Find complete technical information, availability, and procurement data for: 4820-01-497-5581
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-497-5581

Item Name Code

05487

Assigment Date

05/23/2002 (24 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.

flange 1st end connection type, vertical mounting position, automatic valve operation method, ball flow control device, round with holes 1st end flange shape

Product Characteristics

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

Flow Control Device: ball
Valve Operation Method: automatic
Flange Shape: round with holes 1st end
Connection Type: flange 1st end
Mounting Position: vertical
Flange Face Design: plain 1st end
Part Name Assigned By Controlling Agency: inverted vent check valve 1.5 inch with cover
Material: steel body
Surface Treatment: zinc

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
1.5-1750FSGP	Check Valve
1750FSGP-1.5IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-497-5581?

The FSCG of the NSN 4820-01-497-5581 is 4820

Does the NSN 4820-01-497-5581 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-497-5581 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 4820-01-497-5581 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-497-5581 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 4820-01-497-5581 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Thu, May 23, 2002